Number of (5+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal sum plus antidiagonal sum nondecreasing horizontally, vertically and ne-to-sw antidiagonally.
A253845
Number of (5+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) =91296a(1) =129378a(2) =135280a(3) =167413a(4) =156876a(5) =237202a(6) =350208a(7) =545216a(8) =885886a(9) =1475884a(10) =2500372a(11) =4285396a(12) =7233084a(13) =12201915a(14) =20354602a(15) =33446245a(16) =54188520a(17) =86580934a(18) =136349532a(19) =211795733a(20) =324501926a(21) =491052610a(22) =734152658a(23) =1085033465a(24) =1586217372
External references
- oeis: A253845