Number of (n+2) X (2+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.
A253361
Number of (n+2) X (2+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) =272a(1) =424a(2) =960a(3) =1536a(4) =3136a(5) =5664a(6) =10496a(7) =20000a(8) =36160a(9) =68672a(10) =125760a(11) =234816a(12) =436032a(13) =807360a(14) =1505344a(15) =2787648a(16) =5189184a(17) =9632576a(18) =17894464a(19) =33259840a(20) =61745728a(21) =114769216a(22) =213107776a(23) =395978560a(24) =735485504a(25) =1366348096a(26) =2538108992
External references
- oeis: A253361