Number of (3+1)X(n+1) arrays of permutations of 0..n*4+3 with each element having directed index change -1,1 0,-1 0,1 or 1,0.
A264509
Number of (3+1)X(n+1) arrays of permutations of 0..n*4+3 with each element having directed index change -1,1 0,-1 0,1 or 1,0.
Terms
- a(0) =3a(1) =4a(2) =46a(3) =211a(4) =1235a(5) =6613a(6) =35356a(7) =190821a(8) =1011749a(9) =5421768a(10) =28792154a(11) =153620113a(12) =816896091a(13) =4350802828a(14) =23148597981a(15) =123215728220a(16) =655679557091
External references
- oeis: A264509