Number of n X 3 0..1 arrays with every element both equal and not equal to some elements at offset (-1,0) (-1,1) (0,-1) (0,1) or (1,0), with upper left element zero.
A278089
Number of n X 3 0..1 arrays with every element both equal and not equal to some elements at offset (-1,0) (-1,1) (0,-1) (0,1) or (1,0), with upper left element zero.
Terms
- a(0) =0a(1) =3a(2) =16a(3) =66a(4) =351a(5) =1758a(6) =9033a(7) =46159a(8) =236245a(9) =1208622a(10) =6183942a(11) =31638994a(12) =161877345a(13) =828222749a(14) =4237494527a(15) =21680576851a(16) =110925816281a(17) =567537279930
External references
- oeis: A278089