Number of n X 6 (-1,0,1) arrays of determinants of 2 X 2 subblocks of some (n+1) X 7 binary array.

A226715

Number of n X 6 (-1,0,1) arrays of determinants of 2 X 2 subblocks of some (n+1) X 7 binary array.

Terms

    a(0) =491a(1) =80043a(2) =6045209a(3) =439030021a(4) =34404755041

External references