Number of nX4 binary arrays with some element plus some horizontally, vertically or antidiagonally adjacent neighbor totalling two not more than once.
A269085
Number of nX4 binary arrays with some element plus some horizontally, vertically or antidiagonally adjacent neighbor totalling two not more than once.
Terms
- a(0) =13a(1) =76a(2) =428a(3) =2238a(4) =11314a(5) =55620a(6) =268289a(7) =1274435a(8) =5982734a(9) =27813229a(10) =128268964a(11) =587560638a(12) =2675945006a(13) =12126527636a(14) =54715085702a(15) =245932380152
External references
- oeis: A269085