Number of black square subarrays of (n+1)X(4+1) binary arrays with no element equal to a strict majority of its diagonal and antidiagonal neighbors, with upper left element zero.
A231068
Number of black square subarrays of (n+1)X(4+1) binary arrays with no element equal to a strict majority of its diagonal and antidiagonal neighbors, with upper left element zero.
Terms
- a(0) =3a(1) =11a(2) =24a(3) =89a(4) =191a(5) =748a(6) =1573a(7) =6259a(8) =13176a(9) =52497a(10) =110739a(11) =441340a(12) =931361a(13) =3713195a(14) =7836336a(15) =31247585a(16) =65947255a(17) =262980516a(18) =555025545a(19) =2213339483a(20) =4671332880a(21) =18628563209a(22) =39316357723a(23) =156788159916a(24) =330908274229
External references
- oeis: A231068