T(n,k)=Number of (n+1)X(n+1) 0..k arrays with the array of 2X2 subblock determinants antisymmetric and no off-diagonal 2X2 subblock determinant zero.

A187521

T(n,k)=Number of (n+1)X(n+1) 0..k arrays with the array of 2X2 subblock determinants antisymmetric and no off-diagonal 2X2 subblock determinant zero.

Terms

    a(0) =10a(1) =31a(2) =6a(3) =64a(4) =98a(5) =2a(6) =113a(7) =450a(8) =354a(9) =0a(10) =170a(11) =1590a(12) =4200a(13) =1780a(14) =0a(15) =255a(16) =3426a(17) =34776a(18) =73764a(19) =12008a(20) =0a(21) =336a(22) =8546a(23) =107990a(24) =1655170a(25) =2048596a(26) =157694a(27) =0a(28) =449a(29) =13992

External references