[seqfan] Re: Anagrams of triangular numbers
pxp at rogers.com
Sun Oct 18 02:08:12 CEST 2009
zak seidov wrote:
> %S A166596
> %T A166596
> %U A166596 101495628,129548656,102968425,104697685,102925378
> %N A166596 Smallest triangular number exactly n anagrams of which
> are triangular numbers.
First off, I know that A000217 starts with 0, but A068094 states that
there are only 3 one-digit triangular numbers, which would exclude
zero. Looking at a couple of "encyclopedic" entries on the web, the
tendency is to make 1 the first triangular number, A000217
notwithstanding. Second, instead of your 15th entry 104379576, I have
103428153 and instead of your 18th entry 101495628, I have 100174935.
I'm unable to access my program for a day or so because I'm running
something else. Can you check those two differences on your program?
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