Formed from a secondary diagonal of triangle A096542 where a(n) = A096542(n,n-2)/3.

A096543

Formed from a secondary diagonal of triangle A096542 where a(n) = A096542(n,n-2)/3.

Terms

    a(0) =0a(1) =0a(2) =0a(3) =5a(4) =188a(5) =5560a(6) =159460a(7) =4715480a(8) =147031080a(9) =4874069760a(10) =172184044920

External references