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A012529
Expansion of tanh(sinh(x)*sin(x)).
1
2, -248, 524192, -5362156928, 167986518651392, -12583779264376322048, 1926593546409409355620352, -540704478247409702156924715008
OFFSET
0,1
EXAMPLE
tanh(sinh(x)*sin(x)) = 2/2!*x^2-248/6!*x^6+524192/10!*x^10...
MATHEMATICA
Tanh[ Sinh[ x ]*Sin[ x ] ] (* [ x^(4n+2) ] *)
CROSSREFS
Sequence in context: A099685 A027653 A024349 * A012527 A109118 A034313
KEYWORD
sign
AUTHOR
Patrick Demichel (patrick.demichel(AT)hp.com)
STATUS
approved