[seqfan] Re: A026081 Integers in reverse alphabetical order in U.S. English.

Michael Porter ic_designer at verizon.net
Wed Nov 18 08:16:02 CET 2009

I'm not fond of sequences based on words.  In fact, I like them even less than those that depend on the number base.  However, I don't think this sequence should be deleted.  We are allowing sequences that are based on the "word-representation" of integers, and this is probably one of the most important of that kind.

I did notice that the examples used "and" a lot.  My understanding is that "and" is not used to represent integers in U.S. English; it is used to separate the integer from the fraction.  So you would say "five hundred sixty-two and seven tenths" for example.

Do we have a procedure for sequences that are wrong but we don't have the correct values?  If not, could someone who knows what they're doing please fix it?  Barring that, if the choice is really between deleting it and fixing it, I guess I could take my best shot at fixing it.

- MIchael

--- On Mon, 11/16/09, Andrew Weimholt <andrew.weimholt at gmail.com> wrote:

From: Andrew Weimholt <andrew.weimholt at gmail.com>
Subject: [seqfan] Re: A026081 Integers in reverse alphabetical order in U.S. English.
To: "Sequence Fanatics Discussion list" <seqfan at list.seqfan.eu>
Date: Monday, November 16, 2009, 9:44 AM

The sequence is missing "undecillion"  (10^36), "vigintillion"
(10^63),  "unvigintillion" (10^66) and a whole host of other numbers
that come before "two" in reverse alphabetical order.
Not to mention that we'd have to go throught all the "vigintillion
one", "vigintillion two", ... "viginitillion nine hundred ninety nine
novemdecillion ...", for each "illion" that we're missing.

This sequence should probably be deleted.


On 11/16/09, Maximilian Hasler <maximilian.hasler at gmail.com> wrote:
> I just ran across this sequence which I think is wrong,
>  e.g. "two trillion two thousand ..." should come before
>  "two trillion two hundred.....",  unless I'm wrong (well possible).
>  If someone wants to edit (I don't feel... competent, let's say ;)
>  please also correct the offset (should be 1 since this is a list),
>  and maybe change "zero," to "zero;" or remove the other commas in the example.
>  Maximilian
>  PS: I have some doubts whether this sequence CAN be well defined,
>  after all, "2 000 000 000 222" could just count the number of
>  sextillons or so (?),
>  which in turn could count the number of septillions or so, etc.
>  [me: VfD]
>  A026081   Integers in reverse alphabetical order in U.S. English.
>         0, 2202202202202, 2202202202222, 2202202202223, 2202202202226 (list;
>  graph; listen)
>         OFFSET  0,2
>         EXAMPLE
>  Zero, two trillion, two hundred and two billion, two hundred and two
>  million, two hundred and two thousand, two hundred and two, ...
>         CROSSREFS   Cf. A004740, A019440.
>         KEYWORD   nonn,word,dumb
>         AUTHOR   N. Fernandez (primeness(AT)borve.org)
>  _______________________________________________
>  Seqfan Mailing list - http://list.seqfan.eu/


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