Number of 7Xn arrays containing n copies of 0..7-1 with every element equal to or 1 greater than any southwest or northwest neighbors modulo 7 and the upper left element equal to 0.
A267287
Number of 7Xn arrays containing n copies of 0..7-1 with every element equal to or 1 greater than any southwest or northwest neighbors modulo 7 and the upper left element equal to 0.
Terms
- a(0) =720a(1) =4a(2) =4a(3) =40a(4) =8724a(5) =315356a(6) =4893787a(7) =55479601a(8) =912215513
External references
- oeis: A267287