A013279 cosh(log(x+1)-arcsinh(x))=1+3/4!*x^4-30/5!*x^5+180/6!*x^6-945/7!*x^7...

1, 0, 0, 0, 3, -30, 180, -945, 7245, -79380, 822150, -7952175, 92151675, -1325674350, 19070251200, -264982843125, 4134370865625, -74940979113000, 1376877670418250, -24833523534694875, 487380405271134375