Number of n X 2 0..1 arrays with no element equal to a strict majority of its horizontal and antidiagonal neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.

A279971

Number of n X 2 0..1 arrays with no element equal to a strict majority of its horizontal and antidiagonal neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.

Terms

    a(0) =1a(1) =3a(2) =9a(3) =31a(4) =108a(5) =366a(6) =1205a(7) =3873a(8) =12207a(9) =37859a(10) =115842a(11) =350412a(12) =1049545a(13) =3116655a(14) =9185349a(15) =26890375a(16) =78253896a(17) =226510362a(18) =652483133a(19) =1871302893a(20) =5345409483a(21) =15213423371a(22) =43153001406a(23) =122024489304a(24) =344061371665a(25) =967537410459

External references