Number of n X 3 binary arrays with some element plus some horizontally or antidiagonally adjacent neighbor totalling two not more than once.
A268990
Number of n X 3 binary arrays with some element plus some horizontally or antidiagonally adjacent neighbor totalling two not more than once.
Terms
- a(0) =7a(1) =35a(2) =174a(3) =849a(4) =4083a(5) =19416a(6) =91491a(7) =427863a(8) =1988142a(9) =9187653a(10) =42256599a(11) =193542240a(12) =883204143a(13) =4017241083a(14) =18219040206a(15) =82410172617a(16) =371879874987
External references
- oeis: A268990