A012225 sinh(arctan(tanh(x)))=x-3/3!*x^3+41/5!*x^5-1243/7!*x^7+58001/9!*x^9...

1, -3, 41, -1243, 58001, -1956083, -740509639, 509169335477, -295854887910879, 189240977761969437, -139751997081117953719, 120179815628074668521797, -120043777513489781645646159

Offset

0,2

Links

Table of n, a(n) for n=0..12.

Crossrefs

Sequence in context: A181675 A012053 A012162 * A012129 A012035 A012016

Adjacent sequences: A012222 A012223 A012224 * A012226 A012227 A012228

Keyword

sign

Author

Patrick Demichel (patrick.demichel(AT)hp.com)

Status

approved