Number of (n+2) X (3+2) 0..1 arrays with every 2 X 2 and 3 X 3 subblock diagonal maximum minus antidiagonal minimum unequal to its neighbors horizontally and vertically.
A253362
Number of (n+2) X (3+2) 0..1 arrays with every 2 X 2 and 3 X 3 subblock diagonal maximum minus antidiagonal minimum unequal to its neighbors horizontally and vertically.
Terms
- a(0) =560a(1) =960a(2) =2992a(3) =5280a(4) =13800a(5) =27072a(6) =63496a(7) =130464a(8) =297288a(9) =612480a(10) =1410760a(11) =2875104a(12) =6716232a(13) =13589568a(14) =31922056a(15) =64500000a(16) =151450440a(17) =306332928a(18) =718070344a(19) =1453854816a(20) =3404870472a(21) =6895922880a(22) =16148448520a(23) =32703297696
External references
- oeis: A253362