A013190 log(cosh(x)+arcsinh(x))=x-2/3!*x^3+8/4!*x^4-12/5!*x^5-48/6!*x^6...

1, 0, -2, 8, -12, -48, 432, -2112, 10000, 14080, -1500512, 17517568, -18269760, -1666201600, 16350361856, -45064462336, 922523568384, -4131436888064, -990634832194048, 21402743134224384, 92553699220882432