Main diagonal of triangle A097190, in which the n-th row polynomial R_n(y) is formed from the initial (n+1) terms of g.f. A097191(y)^(n+1), where R_n(1/3) = 9^n for all n>=0.
A097192
Main diagonal of triangle A097190, in which the n-th row polynomial R_n(y) is formed from the initial (n+1) terms of g.f. A097191(y)^(n+1), where R_n(1/3) = 9^n for all n>=0.
Terms
- a(0) =1a(1) =24a(2) =612a(3) =15912a(4) =417690a(5) =11027016a(6) =292215924a(7) =7764594552a(8) =206732329947
External references
- oeis: A097192