Number of (n+4)X7 0..2 matrices with each 5X5 subblock idempotent.

Terms

a(0) =23914a(1) =19596a(2) =24024a(3) =26624a(4) =28058a(5) =28949a(6) =36576a(7) =48835a(8) =63548a(9) =79494a(10) =96070a(11) =120095a(12) =156156a(13) =206698a(14) =272947a(15) =355586a(16) =462001a(17) =604267a(18) =796828a(19) =1055426a(20) =1396436a(21) =1843643a(22) =2432843a(23) =3214414a(24) =4254348a(25) =5635048a(26) =7462704a(27) =9879362a(28) =13077330