Number of (n+2) X 9 binary arrays with every 3 X 3 subblock commuting with each horizontal and vertical neighbor 3 X 3 subblock.

A190031

Number of (n+2) X 9 binary arrays with every 3 X 3 subblock commuting with each horizontal and vertical neighbor 3 X 3 subblock.

Terms

    a(0) =1205a(1) =355a(2) =506a(3) =790a(4) =1162a(5) =1494a(6) =1910a(7) =2362a(8) =3002a(9) =4006a(10) =5390a(11) =7234a(12) =9790a(13) =13178a(14) =17955a(15) =24448a(16) =33157a(17) =45099a(18) =61313a(19) =83131a(20) =112959a(21) =153552a(22) =208458a(23) =283316a(24) =385153a(25) =523121a(26) =710869a(27) =966189a(28) =1312546a(29) =1783541

External references