Alternating row sums of array A090438 ((4,2)-Stirling2).

A090439

Alternating row sums of array A090438 ((4,2)-Stirling2).

Terms

    a(0) =1a(1) =5a(2) =37a(3) =-887a(4) =-168919a(5) =-21607859a(6) =-2799384755a(7) =-337767590383

External references