-4305domain: ZAppears in sequencesExpansion of e.g.f. cosh(log(1+x))/cos(x).at n=7A009130List of coefficients of chromatic polynomial of Petersen graph, highest order terms first.at n=7A296912Inverse Euler transform applied once to {1,-1,0,0,0,...}, twice to {1,0,0,0,0,...}, or three times to {1,1,1,1,1,...}.at n=24A320767