[seqfan] Re: Spelling numbers and digits = same length
rhhardin at att.net
Wed Feb 22 20:17:23 CET 2012
Dan Hoey came up with an inequality Spell_Length(n)<=A*n+B (I've forgotten A and
B, which are fairly small rationals: equality at two points), that was used to
limit the maximum length of a self-enumerating sentence, and thus make an
exhaustive search possible.
rhhardin at mindspring.com
rhhardin at att.net (either)
----- Original Message ----
> From: Eric Angelini <Eric.Angelini at kntv.be>
> To: Sequence Fanatics Discussion list <seqfan at list.seqfan.eu>
> Sent: Wed, February 22, 2012 1:18:55 PM
> Subject: [seqfan] Spelling numbers and digits = same length
> Hello SeqFans,
> below you will find a few numbers which, spelled in
> English, are as long as the spelling of their digits.
> Is this worth an entry in the OEIS?
> 1 2 3 -> 9 11 12 13 15
> ONE TWO ... NINE ELEVEN TWELVE THIRTEEN FIFTEEN
> ONE TWO ... NINE ONEONE ONETWO ONETHREE ONEFIVE
> 1001 1002 1003 -> 1009
> ONETHOUSANDONE ONETHOUSANDTWO ... ONETHOUSANDNINE
> ONEZEROZEROONE ONEZEROZEROTWO ... ONETHOUSANDNINE
> 2001 2002 2003 -> 2009
> TWOTHOUSANDONE TWOTHOUSANDTWO ... TWOTHOUSANDNINE
> TWOZEROZEROONE TWOZEROZEROTWO ... TWOTHOUSANDNINE
> 9001 9002 9003 -> 9009
> NINETHOUSANDONE NINETHOUSANDTWO ... NINETHOUSANDNINE
> NINEZEROZEROONE NINEZEROZEROTWO ... NINETHOUSANDNINE
> I guess some numbers are missing in the above sequence...
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