References to A157309

G.f. A(x) satisfies the condition that both A(x) and F(x) = A(x*F(x)) = o.g.f. of A157310 have zeros for every other coefficient after initial terms; g.f. of dual sequence A157308 satisfies the same condition.
1, 1, 0, 1, 0, 9, 0, 176, 0, 5693, 0, 272185, 0, 18043492, 0, 1587355800, 0


2 seqfan posts

Tue Nov 10 10:51:14 CET 2009    [seqfan] Re: Surprising Patterns in Tangent and Secant Numbers
Tue Nov 10 05:57:30 CET 2009    [seqfan] Surprising Patterns in Tangent and Secant Numbers

Index of A-numbers in seqfan: by ascending order    by month    by frequency    by keyword
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