Number of n X n binary arrays symmetric about main diagonal with all ones connected only in a 01110-11111 pattern in any orientation.
A147363
Number of n X n binary arrays symmetric about main diagonal with all ones connected only in a 01110-11111 pattern in any orientation.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =3a(6) =10a(7) =29a(8) =94a(9) =317a(10) =1198a(11) =6765a(12) =47364a(13) =374535a(14) =3411133a(15) =34790832a(16) =407506091a(17) =5940149025a(18) =105319233307
External references
- oeis: A147363