Number of 4Xn arrays containing n copies of 0..4-1 with every element equal to or 1 greater than any north neighbor modulo 4 and the upper left element equal to 0.
A267752
Number of 4Xn arrays containing n copies of 0..4-1 with every element equal to or 1 greater than any north neighbor modulo 4 and the upper left element equal to 0.
Terms
- a(0) =1a(1) =8a(2) =118a(3) =2386a(4) =54956a(5) =1350674a(6) =34568612a(7) =910791802a(8) =24537293344a(9) =672857207788
External references
- oeis: A267752