Number of nX4 0..2 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.
A279898
Number of nX4 0..2 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) =2a(1) =8a(2) =20a(3) =56a(4) =156a(5) =428a(6) =1208a(7) =3316a(8) =9168a(9) =25200a(10) =69152a(11) =189996a(12) =520700a(13) =1426696a(14) =3905118a(15) =10677540a(16) =29172966a(17) =79621084a(18) =217117820a(19) =591513132a(20) =1610070116a(21) =4378827488a(22) =11898970622a(23) =32308585292a(24) =87659016834a(25) =237661886268
External references
- oeis: A279898