Number of (n+1)X(2+1) arrays of permutations of 0..n*3+2 with each element having directed index change -2,-2 -1,0 0,1 or 1,0.
A264528
Number of (n+1)X(2+1) arrays of permutations of 0..n*3+2 with each element having directed index change -2,-2 -1,0 0,1 or 1,0.
Terms
- a(0) =1a(1) =4a(2) =4a(3) =19a(4) =49a(5) =100a(6) =316a(7) =766a(8) =1883a(9) =5221a(10) =12797a(11) =33376a(12) =86922a(13) =220743a(14) =573264a(15) =1477256a(16) =3792956a(17) =9804491a(18) =25237000a(19) =64989265a(20) =167646836a(21) =431649191a(22) =1112482352a(23) =2866999890a(24) =7385967351a(25) =19033926173a(26) =49045740426a(27) =126371267386
External references
- oeis: A264528