Number of (5+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal sum plus antidiagonal median nondecreasing horizontally, vertically and ne-to-sw antidiagonally.
A254024
Number of (5+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal sum plus antidiagonal median nondecreasing horizontally, vertically and ne-to-sw antidiagonally.
Terms
- a(0) =123448a(1) =279743a(2) =642050a(3) =1704423a(4) =3486340a(5) =8213023a(6) =18851978a(7) =39885980a(8) =88807962a(9) =188663823a(10) =363746046a(11) =694144469a(12) =1276646676a(13) =2283974672a(14) =4049460972a(15) =7107577621a(16) =12343610434a(17) =21428240289a(18) =37208805784a(19) =64771809982a(20) =113539444616
External references
- oeis: A254024