Let S(t) = 1 + s_1*t + s_2*t^2 + ... satisfy S' = -S/(2 + S); sequence gives numerators of s_n.

A058955

Let S(t) = 1 + s_1*t + s_2*t^2 + ... satisfy S' = -S/(2 + S); sequence gives numerators of s_n.

Terms

    a(0) =1a(1) =-1a(2) =1a(3) =0a(4) =-1a(5) =-1a(6) =2a(7) =1a(8) =-1a(9) =-7a(10) =-37a(11) =368a(12) =4981a(13) =-9383a(14) =-1129837a(15) =461a(16) =27108469a(17) =68690009a(18) =-981587473a(19) =-23749507a(20) =31685207789a(21) =231197062a(22) =-394010311399a(23) =-16467167272

External references