Number of white square subarrays of (n+1) X (3+1) binary arrays with no element equal to a strict majority of its diagonal and antidiagonal neighbors, with upper left element zero.

A230984

Number of white square subarrays of (n+1) X (3+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) =2a(1) =4a(2) =11a(3) =24a(4) =59a(5) =139a(6) =332a(7) =796a(8) =1903a(9) =4563a(10) =10934a(11) =26209a(12) =62835a(13) =150636a(14) =361156a(15) =865882a(16) =2076002a(17) =4977375a(18) =11933643a(19) =28611925a(20) =68599559a(21) =164473454a(22) =394339672a(23) =945464381a(24) =2266835107a(25) =5434939417a(26) =13030752556a(27) =31242393432a(28) =74906430076

External references