Expansion of e.g.f. cos( sqrt(2) * (exp(x) - 1) ).

Terms

a(0) =1a(1) =0a(2) =-2a(3) =-6a(4) =-10a(5) =10a(6) =190a(7) =1106a(8) =4438a(9) =9978a(10) =-35250a(11) =-666622a(12) =-5657370a(13) =-35308182a(14) =-155215970a(15) =-128513870a(16) =7051468022a(17) =105057922906