[seqfan] A000657 Median Euler numbers
Sean A. Irvine
sairvin at xtra.co.nz
Wed Dec 22 21:19:54 CET 2010
I have been trying to reproduce A000657 using the supplied formulas
and maple code. The formula and maple code agree with each other,
but give a different result to the listed sequence for a(9) onwards.
Assuming, the generating function is correct, then I get:
1731678144256 [different from value in OEIS, 1731678144472]
If these are correct, then A000657 appears to be simply an unsigned
version of A099023.
Does anyone understand A000657 well enough to comment?
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