Number of n X n binary arrays symmetric about main diagonal with all ones connected only in a 1000-1010-1111 pattern in any orientation.
A146810
Number of n X n binary arrays symmetric about main diagonal with all ones connected only in a 1000-1010-1111 pattern in any orientation.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =3a(5) =7a(6) =19a(7) =47a(8) =187a(9) =1053a(10) =6641a(11) =45779a(12) =382213a(13) =4162011a(14) =56301753a(15) =896342697a(16) =17171206379a(17) =405427693543
External references
- oeis: A146810