Number of (n+5)X6 0..2 matrices with each 6X6 subblock idempotent.

Terms

a(0) =2236302a(1) =396769a(2) =311767a(3) =338635a(4) =396573a(5) =443744a(6) =449369a(7) =544003a(8) =692711a(9) =980320a(10) =1411379a(11) =2030529a(12) =2793530a(13) =3794286a(14) =5011337a(15) =6643245a(16) =8896802a(17) =12138019a(18) =16712716a(19) =23206612a(20) =32113928a(21) =44254185a(22) =60652523a(23) =82906840a(24) =113205446