Number of (3+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal sum plus antidiagonal sum nondecreasing horizontally, vertically and ne-to-sw antidiagonally.

A253843

Number of (3+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal sum plus antidiagonal sum nondecreasing horizontally, vertically and ne-to-sw antidiagonally.

Terms

    a(0) =8392a(1) =19970a(2) =52014a(3) =135011a(4) =294870a(5) =654021a(6) =1364704a(7) =2573789a(8) =4642528a(9) =8066302a(10) =13393584a(11) =21654990a(12) =34163708a(13) =53042565a(14) =81005602a(15) =121630372a(16) =179941032a(17) =263356899a(18) =380915814a(19) =544500177a(20) =769753376a(21) =1079053789a(22) =1499219612

External references