Column 1 of triangle A104027, which is the matrix inverse of the triangle A056241 of even-indexed trinomial coefficients.
A104028
Column 1 of triangle A104027, which is the matrix inverse of the triangle A056241 of even-indexed trinomial coefficients.
Terms
- a(0) =1a(1) =-3a(2) =12a(3) =-73a(4) =675a(5) =-9048a(6) =166901a(7) =-4058703a(8) =125837748a(9) =-4845013765a(10) =226796981895
External references
- oeis: A104028