Number of (n+2)X(3+2) 0..1 arrays with every 3X3 subblock diagonal sum minus antidiagonal median nondecreasing horizontally, vertically and ne-to-sw antidiagonally.
A254799
Number of (n+2)X(3+2) 0..1 arrays with every 3X3 subblock diagonal sum minus antidiagonal median nondecreasing horizontally, vertically and ne-to-sw antidiagonally.
Terms
- a(0) =12680a(1) =40167a(2) =133628a(3) =351264a(4) =1200192a(5) =3633517a(6) =12325478a(7) =38276893a(8) =128187410a(9) =405105944a(10) =1331704432a(11) =4254116411a(12) =13863454578a(13) =44643253435a(14) =145048675394a(15) =469389806478
External references
- oeis: A254799