Number of nX6 0..1 arrays with no element unequal to a strict majority of its king-move neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.
A280231
Number of nX6 0..1 arrays with no element unequal to a strict majority of its king-move neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.
Terms
- a(0) =8a(1) =24a(2) =52a(3) =288a(4) =1102a(5) =4260a(6) =16282a(7) =59648a(8) =220330a(9) =806580a(10) =2928596a(11) =10606308a(12) =38210998a(13) =137282336a(14) =491839132a(15) =1757295568a(16) =6265155736a(17) =22290508020a(18) =79158223310a(19) =280632840576a(20) =993329469088
External references
- oeis: A280231