Number of (n+1)X(1+1) 0..4 arrays with row and column sums nondecreasing, and no adjacent elements equal.
A233309
Number of (n+1)X(1+1) 0..4 arrays with row and column sums nondecreasing, and no adjacent elements equal.
Terms
- a(0) =92a(1) =463a(2) =2311a(3) =9822a(4) =41192a(5) =160280a(6) =617500a(7) =2278154a(8) =8346612a(9) =29720846a(10) =105322406a(11) =365709441a(12) =1265566649a(13) =4312665297a(14) =14661080626a(15) =49240073950a(16) =165092049733a(17) =548097358680
External references
- oeis: A233309