Triangle read by rows: T(n,k) is the coefficient of t^k (k >= 1) in the polynomial P[n,t] defined by P[1,t] = P[2,t] = t, P[n,t] = P[n-1,t] + P^2[n-2,t].
A103484
Triangle read by rows: T(n,k) is the coefficient of t^k (k >= 1) in the polynomial P[n,t] defined by P[1,t] = P[2,t] = t, P[n,t] = P[n-1,t] + P^2[n-2,t].
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =2a(6) =1a(7) =3a(8) =2a(9) =1a(10) =1a(11) =4a(12) =6a(13) =5a(14) =1a(15) =5a(16) =12a(17) =18a(18) =14a(19) =10a(20) =4a(21) =1a(22) =1a(23) =6a(24) =20a(25) =46a(26) =72a(27) =86a(28) =64a(29) =26
External references
- oeis: A103484