Number of (n+1) X (2+1) arrays of permutations of 0..n*3+2 with each element having index change +-(.,.) 0,0 1,0 or 1,2.

A264266

Number of (n+1) X (2+1) arrays of permutations of 0..n*3+2 with each element having index change +-(.,.) 0,0 1,0 or 1,2.

Terms

    a(0) =10a(1) =48a(2) =305a(3) =1800a(4) =10933a(5) =65856a(6) =397970a(7) =2402455a(8) =14508869a(9) =87609600a(10) =529045373a(11) =3194668217a(12) =19291314050a(13) =116492151552a(14) =703447966957

External references