Number of (4+1)X(n+1) arrays of permutations of 0..n*5+4 with each element having directed index change -1,1 -1,2 1,0 or 0,-1.
A264553
Number of (4+1)X(n+1) arrays of permutations of 0..n*5+4 with each element having directed index change -1,1 -1,2 1,0 or 0,-1.
Terms
- a(0) =0a(1) =10a(2) =45a(3) =216a(4) =1528a(5) =11728a(6) =66372a(7) =403920a(8) =2587588a(9) =16422928a(10) =100924052a(11) =627229368a(12) =3931197172a(13) =24518011160a(14) =152485541704a(15) =950191656704
External references
- oeis: A264553