Triangular array T(n,k), read by rows: coefficients of strong divisibility sequence of polynomials p(1,x) = 1, p(2,x) = 1 + 2*x, p(n,x) = u*p(n-1,x) + v*p(n-2,x) for n >= 3, where u = p(2,x), v = 1 + 3*x^2.

A368518

Triangular array T(n,k), read by rows: coefficients of strong divisibility sequence of polynomials p(1,x) = 1, p(2,x) = 1 + 2*x, p(n,x) = u*p(n-1,x) + v*p(n-2,x) for n >= 3, where u = p(2,x), v = 1 + 3*x^2.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =2a(4) =4a(5) =7a(6) =3a(7) =10a(8) =18a(9) =20a(10) =5a(11) =20a(12) =51a(13) =68a(14) =61a(15) =8a(16) =40a(17) =118a(18) =220a(19) =251a(20) =182a(21) =13a(22) =76a(23) =264a(24) =584a(25) =905a(26) =888a(27) =547a(28) =21a(29) =142

External references