Number of (n+1)X(7+1) 0..1 arrays with nondecreasing sum of every two consecutive values in every row and column.
A250431
Number of (n+1)X(7+1) 0..1 arrays with nondecreasing sum of every two consecutive values in every row and column.
Terms
- a(0) =625a(1) =5625a(2) =50625a(3) =275625a(4) =1500625a(5) =6002500a(6) =24010000a(7) =77792400a(8) =252047376a(9) =700131600a(10) =1944810000a(11) =4802490000a(12) =11859210000a(13) =26683222500a(14) =60037250625a(15) =125262905625a(16) =261351000625a(17) =512247961225
External references
- oeis: A250431