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A012355
Expansion of e.g.f. sinh(tan(x) * log(x+1)).
0
0, 0, 2, -3, 16, -50, 440, -2856, 30896, -291528, 3518848, -41141320, 556495520, -7659162576, 116623578864, -1844238858840, 31500762034176, -562615136891072, 10696734155925504, -212805382639718016, 4464074777217786112, -97816050420003646080
OFFSET
0,3
EXAMPLE
2/2!*x^2 - 3/3!*x^3 + 16/4!*x^4 - 50/5!*x^5 ...
CROSSREFS
Sequence in context: A012704 A012698 A302611 * A012353 A012703 A012699
KEYWORD
sign
AUTHOR
Patrick Demichel (patrick.demichel(AT)hp.com)
EXTENSIONS
a(0) and a(1) inserted and title improved by Sean A. Irvine, Jul 18 2018
STATUS
approved