a(n) = (-2)^n*A_{n,3}(1/2) where A_{n,k}(x) are the generalized Eulerian polynomials.

A151919

a(n) = (-2)^n*A_{n,3}(1/2) where A_{n,k}(x) are the generalized Eulerian polynomials.

Terms

    a(0) =1a(1) =-4a(2) =34a(3) =-442a(4) =7654a(5) =-165634a(6) =4301254a(7) =-130313362a(8) =4512058774a(9) =-175757170114

External references