Triangular array T(n,k), read by rows: coefficients of strong divisibility sequence of polynomials p(1,x) = 1, p(2,x) = 1 + 3*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 - x^2.
A368154
Triangular array T(n,k), read by rows: coefficients of strong divisibility sequence of polynomials p(1,x) = 1, p(2,x) = 1 + 3*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 - x^2.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =2a(4) =3a(5) =8a(6) =3a(7) =9a(8) =7a(9) =21a(10) =5a(11) =15a(12) =31a(13) =15a(14) =55a(15) =8a(16) =30a(17) =53a(18) =99a(19) =30a(20) =144a(21) =13a(22) =54a(23) =124a(24) =165a(25) =306a(26) =54a(27) =377a(28) =21a(29) =99
External references
- oeis: A368154