Number of n X 2 0..2 arrays with no element unequal to a strict majority of its horizontal and vertical neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.
A279851
Number of n X 2 0..2 arrays with no element unequal to a strict majority of its horizontal and vertical neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.
Terms
- a(0) =0a(1) =4a(2) =10a(3) =24a(4) =54a(5) =116a(6) =250a(7) =528a(8) =1118a(9) =2348a(10) =4930a(11) =10312a(12) =21542a(13) =44900a(14) =93450a(15) =194176a(16) =402926a(17) =834972a(18) =1728210a(19) =3572920a(20) =7378870a(21) =15223764a(22) =31379610a(23) =64623344a(24) =132974974a(25) =273406476a(26) =561726050a(27) =1153278248a(28) =2366208838a(29) =4851722308
External references
- oeis: A279851