Number of (3+1)X(n+1) arrays of permutations of 0..n*4+3 with each element having directed index change 0,0 0,1 1,0 or -1,-2.
A264287
Number of (3+1)X(n+1) arrays of permutations of 0..n*4+3 with each element having directed index change 0,0 0,1 1,0 or -1,-2.
Terms
- a(0) =1a(1) =26a(2) =132a(3) =675a(4) =4189a(5) =23852a(6) =134432a(7) =768664a(8) =4381032a(9) =24926476a(10) =141860756a(11) =807487003a(12) =4595740788a(13) =26154580810a(14) =148850346356a(15) =847132073037
External references
- oeis: A264287