Number of nX3 0..1 arrays with every element equal to 0, 2, 3 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
A300677
Number of nX3 0..1 arrays with every element equal to 0, 2, 3 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =1a(1) =2a(2) =5a(3) =11a(4) =8a(5) =58a(6) =131a(7) =306a(8) =936a(9) =2435a(10) =6683a(11) =18093a(12) =49663a(13) =134666a(14) =367314a(15) =1002020a(16) =2728817a(17) =7439403a(18) =20275261a(19) =55264984a(20) =150614904a(21) =410527337a(22) =1118909399a(23) =3049617734a(24) =8311952136a(25) =22654640136a(26) =61746476769a(27) =168293237171a(28) =458692748831
External references
- oeis: A300677