Number of n X 2 0..1 arrays with no element equal to a strict majority of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.
A279460
Number of n X 2 0..1 arrays with no element equal to a strict majority of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.
Terms
- a(0) =0a(1) =2a(2) =6a(3) =20a(4) =66a(5) =210a(6) =658a(7) =2036a(8) =6236a(9) =18928a(10) =57032a(11) =170790a(12) =508748a(13) =1508462a(14) =4454576a(15) =13107640a(16) =38446722a(17) =112448726a(18) =328044512a(19) =954771282a(20) =2772970950a(21) =8038036642a(22) =23258558892a(23) =67190053760a(24) =193807573324a(25) =558249440024
External references
- oeis: A279460