Number of (4+1) X (n+1) arrays of permutations of 0..n*5+4 with each element having directed index change -2,-2 -1,0 0,1 or 1,0.
A264537
Number of (4+1) X (n+1) arrays of permutations of 0..n*5+4 with each element having directed index change -2,-2 -1,0 0,1 or 1,0.
Terms
- a(0) =0a(1) =19a(2) =40a(3) =166a(4) =824a(5) =3256a(6) =15028a(7) =64156a(8) =275764a(9) =1203956a(10) =5186196a(11) =22489732a(12) =97426420a(13) =421553284a(14) =1826019284a(15) =7905435556a(16) =34229151412a(17) =148217266564a(18) =641745438100
External references
- oeis: A264537