Number of (3+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal sum minus antidiagonal median nondecreasing horizontally, vertically and ne-to-sw antidiagonally.
A254806
Number of (3+2)X(n+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) =46026a(2) =133628a(3) =362924a(4) =1133390a(5) =3598070a(6) =11836406a(7) =37936764a(8) =125487216a(9) =402542545a(10) =1314613212a(11) =4204596324a(12) =13623221472a(13) =43708937976a(14) =141416903594a(15) =455887528023
External references
- oeis: A254806