Number of 6Xn arrays containing n copies of 0..6-1 with every element equal to or 1 greater than any north or west neighbors modulo 6 and the upper left element equal to 0.
A268122
Number of 6Xn arrays containing n copies of 0..6-1 with every element equal to or 1 greater than any north or west neighbors modulo 6 and the upper left element equal to 0.
Terms
- a(0) =1a(1) =2a(2) =5a(3) =15a(4) =67a(5) =761a(6) =24745a(7) =726627a(8) =15303976a(9) =251565608a(10) =3466082679a(11) =42227611356a(12) =474756482065
External references
- oeis: A268122