Number of (n+1) X (1+1) 0..1 arrays with no element having a strict majority of its horizontal, vertical and antidiagonal neighbors equal to one.

A231703

Number of (n+1) X (1+1) 0..1 arrays with no element having a strict majority of its horizontal, vertical and antidiagonal neighbors equal to one.

Terms

    a(0) =5a(1) =17a(2) =42a(3) =121a(4) =351a(5) =978a(6) =2768a(7) =7851a(8) =22168a(9) =62688a(10) =177333a(11) =501398a(12) =1417871a(13) =4009693a(14) =11338691a(15) =32064185a(16) =90673442a(17) =256411571a(18) =725096165a(19) =2050472356a(20) =5798450868a(21) =16397214669a(22) =46369052496a(23) =131125251872a(24) =370804035439

External references