Triangle, read by rows, that transforms diagonals in the array A274390 of coefficients in successive iterations of Euler's tree function (A000169).

A274570

Triangle, read by rows, that transforms diagonals in the array A274390 of coefficients in successive iterations of Euler's tree function (A000169).

Terms

    a(0) =1a(1) =1a(2) =1a(3) =7a(4) =2a(5) =1a(6) =127a(7) =20a(8) =3a(9) =1a(10) =4377a(11) =470a(12) =39a(13) =4a(14) =1a(15) =245481a(16) =19912a(17) =1125a(18) =64a(19) =5a(20) =1a(21) =20391523a(22) =1326382a(23) =56505a(24) =2188a(25) =95a(26) =6a(27) =1a(28) =2354116899a(29) =127677580

External references