Expansion of e.g.f. exp(x^2/2 * sinh(x)).

Terms

a(0) =1a(1) =0a(2) =0a(3) =3a(4) =0a(5) =10a(6) =90a(7) =21a(8) =1680a(9) =7596a(10) =20160a(11) =415855a(12) =1437480a(13) =14054118a(14) =152888736a(15) =709909305a(16) =10908468480a(17) =85410365176a(18) =738885274560