[seqfan] Re: Concatenation

Alonso Del Arte alonso.delarte at gmail.com
Sat Apr 24 04:16:04 CEST 2010

I'm wondering if there is any sequence in the OEIS involving some kind of
concatenation but not involving base representation (e.g., binary, decimal,
Roman). A search for concatenation gives 2182 results, while "concatenation
-keyword:base" gives 361 results, but it seems that the majority of those
ought to have keyword base (adding that keyword to such sequences is on my
to do list).


On Fri, Apr 23, 2010 at 7:06 PM, Hans Havermann <pxp at rogers.com> wrote:

> Mathematica's StringJoin function has a notational alternate that
> goes: "s1"<>"s2"<>...
> I have actually used this notation to describe a couple of large
> probable primes (on Henri & Renaud Lifchitz's Probable Prime Records
> website). A 32676-digit example:
> 93<>prime(14475)<>prime(14476)<>...<>prime(19919)<>2237
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