23150592domain: NAppears in sequencesExpansion of 1/(1+2*x^2+2*x^3).at n=37A077968E.g.f. exp(-x)*cosh(x)/(1-x)^2.at n=10A088127Expansion of x^3 / ( 1+2*x^2+2*x^3 ).at n=39A123958