T(4n,n), where T is the array in A026323.

A026334

T(4n,n), where T is the array in A026323.

Terms

    a(0) =1a(1) =4a(2) =36a(3) =352a(4) =3620a(5) =38304a(6) =412895a(7) =4509152a(8) =49721364a(9) =552359680a(10) =6172578126a(11) =69310337760a(12) =781375805392

External references