Number of nX4 0..1 arrays with every element equal to 2, 3, 4, 5 or 7 king-move adjacent elements, with upper left element zero.
A298625
Number of nX4 0..1 arrays with every element equal to 2, 3, 4, 5 or 7 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =0a(1) =6a(2) =26a(3) =125a(4) =1218a(5) =8617a(6) =71334a(7) =577595a(8) =4700651a(9) =38480495a(10) =314451735a(11) =2573334509a(12) =21055448310a(13) =172301801294
External references
- oeis: A298625