login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A012985
exp(arctan(x)+arcsin(x))=1+2*x+4/2!*x^2+7/3!*x^3+8/4!*x^4+25/5!*x^5...
0
1, 2, 4, 7, 8, 25, 310, 1985, 4600, 14905, 695450, 9006925, 32209900, 20012525, 9441571750, 202749678625, 1024927826000, -3158018147375, 439344864507250, 14186901874647125, 96071120715212500
OFFSET
0,2
CROSSREFS
Sequence in context: A293759 A122979 A122980 * A291178 A023145 A094446
KEYWORD
sign
AUTHOR
Patrick Demichel (patrick.demichel(AT)hp.com)
STATUS
approved