E.g.f.: S(x,k) = -i * sn( i * Integral C(x,k) dx, k) such that C(x,k) = cn( i * Integral C(x,k) dx, k), where S(x,k) = Sum_{n>=0} Sum_{j=0..n} T(n,j) * x^(2*n+1)*k^(2*j)/(2*n+1)!, as a triangle of coefficients T(n,j) read by rows.
A325220
E.g.f.: S(x,k) = -i * sn( i * Integral C(x,k) dx, k) such that C(x,k) = cn( i * Integral C(x,k) dx, k), where S(x,k) = Sum_{n>=0} Sum_{j=0..n} T(n,j) * x^(2*n+1)*k^(2*j)/(2*n+1)!, as a triangle of coefficients T(n,j) read by rows.
Terms
- a(0) =1a(1) =2a(2) =1a(3) =16a(4) =28a(5) =1a(6) =272a(7) =1032a(8) =270a(9) =1a(10) =7936a(11) =52736a(12) =36096a(13) =2456a(14) =1a(15) =353792a(16) =3646208a(17) =4766048a(18) =1035088a(19) =22138a(20) =1a(21) =22368256a(22) =330545664a(23) =704357760a(24) =319830400a(25) =27426960a(26) =199284a(27) =1a(28) =1903757312a(29) =38188155904
External references
- oeis: A325220