Number of 5Xn arrays containing n copies of 0..5-1 with every element equal to or 1 greater than any north or southwest neighbors modulo 5 and the upper left element equal to 0.
A267657
Number of 5Xn arrays containing n copies of 0..5-1 with every element equal to or 1 greater than any north or southwest neighbors modulo 5 and the upper left element equal to 0.
Terms
- a(0) =1a(1) =3a(2) =21a(3) =221a(4) =1811a(5) =13359a(6) =129319a(7) =1586523a(8) =18730678a(9) =199349073a(10) =2099779009a(11) =24121529923a(12) =295646288820
External references
- oeis: A267657