A012980 tanh(arctan(x)+sin(x))=2*x-19/3!*x^3+777/5!*x^5-69137/7!*x^7...

2, -19, 777, -69137, 10638417, -2507750617, 839139592969, -378121773804337, 220718283821767713, -162004120310722473001, 146031595896623765319193, -158588958155287462968094529, 204221537438129307495799630193

Offset

0,1

Links

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

Crossrefs

Sequence in context: A155956 A013047 A012951 * A323280 A013110 A024228

Adjacent sequences: A012977 A012978 A012979 * A012981 A012982 A012983

Keyword

sign

Author

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

Status

approved