Triangle read by rows: T(n,k) (1<=k<=n) = number of n X k whirlpool permutations (see A334518).

A334519

Triangle read by rows: T(n,k) (1<=k<=n) = number of n X k whirlpool permutations (see A334518).

Terms

    a(0) =1a(1) =2a(2) =8a(3) =6a(4) =84a(5) =5904a(6) =24a(7) =1632a(8) =1064304a(9) =2456909824a(10) =120a(11) =51040a(12) =402671760a(15) =720a(16) =2340480a(17) =273315542400

External references