Number of n X 5 0..1 arrays with every element equal to 2, 3, 5 or 7 king-move adjacent elements, with upper left element zero.
A298136
Number of n X 5 0..1 arrays with every element equal to 2, 3, 5 or 7 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =0a(1) =11a(2) =0a(3) =20a(4) =88a(5) =242a(6) =627a(7) =2604a(8) =8137a(9) =28727a(10) =101137a(11) =350450a(12) =1221711a(13) =4290711a(14) =14968081a(15) =52427734a(16) =183691236a(17) =643194452a(18) =2252416158a(19) =7891461835a(20) =27639419217a(21) =96818359023a(22) =339160988868
External references
- oeis: A298136