Triangle, read by rows, that transforms diagonals in the table of coefficients in the successive iterations of x+x^2 (cf. A122888).

A135080

Triangle, read by rows, that transforms diagonals in the table of coefficients in the successive iterations of x+x^2 (cf. A122888).

Terms

    a(0) =1a(1) =1a(2) =1a(3) =2a(4) =2a(5) =1a(6) =8a(7) =7a(8) =3a(9) =1a(10) =50a(11) =40a(12) =15a(13) =4a(14) =1a(15) =436a(16) =326a(17) =112a(18) =26a(19) =5a(20) =1a(21) =4912a(22) =3492a(23) =1128a(24) =240a(25) =40a(26) =6a(27) =1a(28) =68098a(29) =46558

External references