Number of (n+1)X(3+1) arrays of permutations of 0..n*4+3 with each element having directed index change -1,-1 1,0 -1,-2 -2,-2 or 0,1.
A264671
Number of (n+1)X(3+1) arrays of permutations of 0..n*4+3 with each element having directed index change -1,-1 1,0 -1,-2 -2,-2 or 0,1.
Terms
- a(0) =1a(1) =10a(2) =34a(3) =145a(4) =603a(5) =2417a(6) =9976a(7) =40825a(8) =166985a(9) =684253a(10) =2801318a(11) =11470702a(12) =46972259a(13) =192337615a(14) =787587465a(15) =3225016272a(16) =13205769817a(17) =54075000313a(18) =221426203265a(19) =906695582830
External references
- oeis: A264671