A024335 Expansion of sinh(log(1+x)^2)/2.

0, 0, 1, -3, 11, -50, 334, -3024, 32388, -381744, 4838076, -65583540, 950021940, -14693894280, 242272566600, -4248337358160, 79009205066400, -1553851954502400, 32222584311078480, -702651673196884080, 16071124886746959600, -384653713958912916000

Offset

0,4

Links

Table of n, a(n) for n=0..21.

Mathematica

Sinh[ Log[ 1+x ]^2 ]/2

Crossrefs

Cf. A009585.

Sequence in context: A065048 A256126 A321607 * A203009 A024336 A145144

Adjacent sequences: A024332 A024333 A024334 * A024336 A024337 A024338

Keyword

sign

Author

R. H. Hardin

Extensions

Extended with signs, Mar 1997

Status

approved