Number of (n+2)X9 0..2 arrays with every 3X3 subblock commuting with each horizontal and vertical neighbor 3X3 subblock.

A186566

Number of (n+2)X9 0..2 arrays with every 3X3 subblock commuting with each horizontal and vertical neighbor 3X3 subblock.

Terms

    a(0) =29303a(1) =4033a(2) =6511a(3) =14845a(4) =27391a(5) =36133a(6) =47719a(7) =60973a(8) =82447a(9) =122725a(10) =185863a(11) =278125a(12) =425791a(13) =645685a(14) =993687a(15) =1533053a(16) =2343151a(17) =3593989a(18) =5522887a(19) =8433037a(20) =12920671a(21) =19843157a(22) =30348343a(23) =46510173a(24) =71399503a(25) =109274533a(26) =167438119

External references