Number of nX6 0..1 arrays with every element unequal to 0, 1 or 3 king-move adjacent elements, with upper left element zero.

A303680

Number of nX6 0..1 arrays with every element unequal to 0, 1 or 3 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =13a(1) =49a(2) =39a(3) =64a(4) =110a(5) =177a(6) =245a(7) =335a(8) =467a(9) =657a(10) =949a(11) =1391a(12) =2035a(13) =2937a(14) =4221a(15) =6079a(16) =8771a(17) =12657a(18) =18269a(19) =26383a(20) =38091a(21) =54969a(22) =79317a(23) =114471a(24) =165219a(25) =238457a(26) =344157a(27) =496719a(28) =716907a(29) =1034681

External references