Array of coefficients A(n,k) of the formal power series P(n,x) read by upwards antidiagonals, where P(n,x) = Sum_{k>=0} A(n,k)*x^k = 1+x*P(n,x)^(1*n)+x^2*P(n,x)^(2*n) for n >= 0.
A261440
Array of coefficients A(n,k) of the formal power series P(n,x) read by upwards antidiagonals, where P(n,x) = Sum_{k>=0} A(n,k)*x^k = 1+x*P(n,x)^(1*n)+x^2*P(n,x)^(2*n) for n >= 0.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =1a(6) =1a(7) =1a(8) =2a(9) =0a(10) =1a(11) =1a(12) =3a(13) =4a(14) =0a(15) =1a(16) =1a(17) =4a(18) =11a(19) =9a(20) =0a(21) =1a(22) =1a(23) =5a(24) =21a(25) =46a(26) =21a(27) =0a(28) =1a(29) =1
External references
- oeis: A261440