Number of nX7 0..1 arrays with every element unequal to 0, 1, 3 or 4 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
A318036
Number of nX7 0..1 arrays with every element unequal to 0, 1, 3 or 4 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =21a(1) =91a(2) =368a(3) =1222a(4) =6525a(5) =32385a(6) =204645a(7) =1284756a(8) =8133386a(9) =51773454a(10) =331053698a(11) =2126470209a(12) =13650378979a(13) =87727825675a(14) =563717129308
External references
- oeis: A318036