Number of (n+1)X(3+1) 0..1 arrays with the sum of each 2X2 subblock two median terms lexicographically nondecreasing columnwise and nonincreasing rowwise.
A235760
Number of (n+1)X(3+1) 0..1 arrays with the sum of each 2X2 subblock two median terms lexicographically nondecreasing columnwise and nonincreasing rowwise.
Terms
- a(0) =141a(1) =977a(2) =6882a(3) =41446a(4) =242684a(5) =1310058a(6) =6840001a(7) =34087789a(8) =165068548a(9) =775598494a(10) =3562426975a(11) =16017777604a(12) =70763909432a(13) =307697458346
External references
- oeis: A235760