Number of 6Xn arrays containing n copies of 0..6-1 with every element equal to or 1 greater than any northeast neighbor modulo 6 and the upper left element equal to 0.
A267839
Number of 6Xn arrays containing n copies of 0..6-1 with every element equal to or 1 greater than any northeast neighbor modulo 6 and the upper left element equal to 0.
Terms
- a(0) =120a(1) =2430a(2) =147340a(3) =13895954a(4) =1578668020a(5) =197549600170
External references
- oeis: A267839