Number of (n+2)X10 0..3 arrays with every 3X3 subblock commuting with each horizontal and vertical neighbor 3X3 subblock.

A186880

Number of (n+2)X10 0..3 arrays with every 3X3 subblock commuting with each horizontal and vertical neighbor 3X3 subblock.

Terms

    a(0) =322910a(1) =25381a(2) =46624a(3) =148048a(4) =310528a(5) =414184a(6) =571984a(7) =801208a(8) =1130584a(9) =1842208a(10) =3014488a(11) =4813744a(12) =8147608a(13) =13457800a(14) =21637048a(15) =37154419a(16) =62117614a(17) =101085745a(18) =172069837a(19) =287321977a(20) =469126669a(21) =793531357a(22) =1325629774a(23) =2174290240

External references