Number of (n+4) X 8 0..1 matrices with each 5 X 5 subblock idempotent.

Terms

a(0) =3465a(1) =1720a(2) =1896a(3) =2166a(4) =2429a(5) =2646a(6) =3214a(7) =4122a(8) =5307a(9) =6699a(10) =8253a(11) =10313a(12) =13224a(13) =17256a(14) =22621a(15) =29474a(16) =38326a(17) =50021a(18) =65685a(19) =86644a(20) =114391a(21) =150918a(22) =199073a(23) =262818a(24) =347453a(25) =459759a(26) =608521a(27) =805360a(28) =1065871a(29) =1410937