References to A012821

exp(sec(x)*arcsinh(x))=1+x+1/2!*x^2+3/3!*x^3+9/4!*x^4+45/5!*x^5...
1, 1, 1, 3, 9, 45, 225, 1071, 6993, 56697, 467745, 3279419, 29529753, 376156261


3 seqfan posts

Fri Mar 26 01:27:20 CET 2010    [seqfan] Re: Eventually-signed sequences
Fri Mar 26 00:28:55 CET 2010    [seqfan] Re: Eventually-signed sequences
Thu Mar 25 22:49:57 CET 2010    [seqfan] Eventually-signed sequences

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