arctan(arctan(x)+tan(x))=2*x-16/3!*x^3+808/5!*x^5-99328/7!*x^7...
2, 16, 808, 99328, 22756480, 8373489408, 4518380796928
2 seqfan posts
Sat Dec 17 09:16:17 CET 2011 [seqfan] Re: A013538
Sat Dec 17 07:24:19 CET 2011 [seqfan] Re: A013538
Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword
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