E.g.f.: arctan(sin(arctan(x))) (odd powers only).
1, 5, 129, 7965, 903105, 163451925, 43259364225, 15764670046125
3 seqfan posts
Thu Dec 24 02:19:40 CET 2009 [seqfan] Re: A012022, A065140 and sqrt(2)
Thu Dec 24 02:19:40 CET 2009 [seqfan] Re: A012022, A065140 and sqrt(2)
Wed Dec 23 15:22:12 CET 2009 [seqfan] A012022, A065140 and sqrt(2)
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