[seqfan] Re: Gen. Functs. A039219

[Alois Heinz]

Yes, these generating functions are wrong.

It seems that the g.f.s were derived from the lists of terms
and should have been marked as "conjectured".

And there are more: A118672, A054899, A039217, A039273, ...

Alois

Richard Mathar schrieb:
> I see that the generating function provided in A039219 is
> incorrect, starting at the power [x^101] g(x), where it differs
> from the correct value by a(n=101)=120 by 1. It is no surprise
> that the g.f. is much more complicated than the one given, because
> the number of digits to compare have these typical wrap-around feature
> at the powers of 12 (in this case).
>
> I fear the same problem appears in A039255, A039257, A039261,A039263,
> A039266, A039270, A039268. Can s.o. check this independently?
>
> In addition: is there any indication that the g.f. for the coding
> function A(n,10,7) in A005855 or A005862 is correct, given that the Rains-Sloane
> tables give only lower bounds for values of n roughly larger than 22?
>
> Richard
>
>
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