Triangle read by rows in which row n gives coefficients of polynomial R_n(y) that satisfies R_n(1/3) = 9^n, where R_n(y) forms the initial (n+1) terms of g.f. A097191(y)^(n+1).
A097190
Triangle read by rows in which row n gives coefficients of polynomial R_n(y) that satisfies R_n(1/3) = 9^n, where R_n(y) forms the initial (n+1) terms of g.f. A097191(y)^(n+1).
Terms
- a(0) =1a(1) =1a(2) =24a(3) =1a(4) =36a(5) =612a(6) =1a(7) =48a(8) =1104a(9) =15912a(10) =1a(11) =60a(12) =1740a(13) =32130a(14) =417690a(15) =1a(16) =72a(17) =2520a(18) =56700a(19) =912492a(20) =11027016a(21) =1a(22) =84a(23) =3444a(24) =91350a(25) =1750014a(26) =25562628a(27) =292215924a(28) =1a(29) =96
External references
- oeis: A097190