Number of nX4 0..1 arrays with no element equal to a strict majority of its horizontal and vertical neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.
A279130
Number of nX4 0..1 arrays with no element equal to a strict majority of its horizontal and vertical neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.
Terms
- a(0) =3a(1) =34a(2) =256a(3) =1324a(4) =6396a(5) =30074a(6) =129264a(7) =535814a(8) =2150797a(9) =8418336a(10) =32296969a(11) =121849424a(12) =453295302a(13) =1666387390a(14) =6063302940a(15) =21865526486a(16) =78234877789a(17) =277985152886a(18) =981636776095
External references
- oeis: A279130