A013335 tanh(exp(x)-sec(x))=x-1/3!*x^3-4/4!*x^4-3/5!*x^5+60/6!*x^6...

1, 0, -1, -4, -3, 60, 107, -264, -11175, -40200, 142903, 2392436, 8175637, -327277132, -3256146845, -19824913424, 184016913969, 1628105059824, -33266797736465, -1067099983418644, -14633634217342547