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A009473
Expansion of sin(sin(tanh(x))).
0
1, -4, 68, -2472, 152144, -14034560, 1799730624, -304857999232, 65741679927552, -17551668357299200, 5675908680156886016, -2184408933211162445824, 986028359061107747639296, -515674384290974756211654656
OFFSET
0,2
MATHEMATICA
Sin[ Sin[ Tanh[ x ] ] ] (* Odd Part *)
CROSSREFS
Sequence in context: A156470 A326288 A302115 * A009520 A009791 A012484
KEYWORD
sign
AUTHOR
EXTENSIONS
Extended with signs by Olivier Gérard, Mar 15 1997
STATUS
approved