Number of (n+1)X(3+1) arrays of permutations of 0..n*4+3 with each element having directed index change -2,0 -1,0 0,-1 or 1,1.
A264623
Number of (n+1)X(3+1) arrays of permutations of 0..n*4+3 with each element having directed index change -2,0 -1,0 0,-1 or 1,1.
Terms
- a(0) =0a(1) =4a(2) =13a(3) =22a(4) =61a(5) =280a(6) =832a(7) =2373a(8) =7225a(9) =24371a(10) =74664a(11) =229729a(12) =715055a(13) =2264780a(14) =7040309a(15) =21916773a(16) =68434305a(17) =214187227a(18) =668160424a(19) =2084764226a(20) =6510150515a(21) =20333712284a(22) =63475055481a(23) =198151996889a(24) =618702544012
External references
- oeis: A264623