Convergent of rows in triangle A091499, in which A091499(n,k) equals the k-th term of the convolution of the two prior rows indexed by (n-k) and (k-1).

A091500

Convergent of rows in triangle A091499, in which A091499(n,k) equals the k-th term of the convolution of the two prior rows indexed by (n-k) and (k-1).

Terms

    a(0) =1a(1) =1a(2) =2a(3) =4a(4) =9a(5) =20a(6) =47a(7) =113a(8) =275a(9) =676a(10) =1685a(11) =4271a(12) =10843a(13) =27801a(14) =71611a(15) =185795a(16) =484551a(17) =1269717a(18) =3335594a(19) =8806077a(20) =23311686a(21) =61929281a(22) =165062249a(23) =440951151a(24) =1181040770a(25) =3170467624a(26) =8528882846a(27) =22986648032a(28) =62085549929a(29) =167970076540

External references