Number of n X n binary arrays symmetric about main diagonal with all ones connected only in a 11011-01110 pattern in any orientation.
A147226
Number of n X n binary arrays symmetric about main diagonal with all ones connected only in a 11011-01110 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) =321a(10) =1262a(11) =7231a(12) =51504a(13) =415403a(14) =3863371a(15) =41121252a(16) =505066528a(17) =7638140887a(18) =140942068334
External references
- oeis: A147226