E.g.f.: C(x,k) = 1 + Integral S(x,k)*D(x,k)^2 dx, such that C(x,k)^2 - S(x,k)^2 = 1, and D(x,k)^2 - k^2*S(x,k)^2 = 1, as a triangle of coefficients read by rows.
A322231
E.g.f.: C(x,k) = 1 + Integral S(x,k)*D(x,k)^2 dx, such that C(x,k)^2 - S(x,k)^2 = 1, and D(x,k)^2 - k^2*S(x,k)^2 = 1, as a triangle of coefficients read by rows.
Terms
- a(0) =1a(1) =1a(2) =0a(3) =1a(4) =8a(5) =0a(6) =1a(7) =88a(8) =136a(9) =0a(10) =1a(11) =816a(12) =6240a(13) =3968a(14) =0a(15) =1a(16) =7376a(17) =195216a(18) =513536a(19) =176896a(20) =0a(21) =1a(22) =66424a(23) =5352544a(24) =39572864a(25) =51880064a(26) =11184128a(27) =0a(28) =1a(29) =597864
External references
- oeis: A322231