Number of nX6 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 1 0 and 1 1 1 vertically.
A207877
Number of nX6 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 1 0 and 1 1 1 vertically.
Terms
- a(0) =19a(1) =361a(2) =702a(3) =1940a(4) =4160a(5) =10742a(6) =24952a(7) =61530a(8) =143916a(9) =341856a(10) =844144a(11) =1976858a(12) =4722206a(13) =11490150a(14) =27386568a(15) =65256342a(16) =157156516a(17) =378403428a(18) =901805910a(19) =2160944164a(20) =5211084366a(21) =12459269388a(22) =29798331568a(23) =71701305774a(24) =171968197128
External references
- oeis: A207877