Number of (n+1)X(3+1) arrays of permutations of 0..n*4+3 with each element having directed index change 0,1 0,-2 1,0 or -1,0.
A264295
Number of (n+1)X(3+1) arrays of permutations of 0..n*4+3 with each element having directed index change 0,1 0,-2 1,0 or -1,0.
Terms
- a(0) =5a(1) =8a(2) =89a(3) =192a(4) =1413a(5) =4352a(6) =24781a(7) =90112a(8) =449665a(9) =1781256a(10) =8340733a(11) =34594368a(12) =156594265a(13) =665254400a(14) =2958805225a(15) =12729812160a(16) =56099851853a(17) =242965239816
External references
- oeis: A264295