Number of 4Xn arrays containing n copies of 0..4-1 with no element 1 greater than its north, west or northwest neighbor modulo 4 and the upper left element equal to 0.
A266834
Number of 4Xn arrays containing n copies of 0..4-1 with no element 1 greater than its north, west or northwest neighbor modulo 4 and the upper left element equal to 0.
Terms
- a(0) =2a(1) =11a(2) =95a(3) =1267a(4) =19605a(5) =322100a(6) =5798969a(7) =109094449a(8) =2137890119a(9) =42723425901a(10) =870452405353
External references
- oeis: A266834