Number of n X n binary arrays symmetric about main diagonal with all ones connected only either as two by three or three by two blocks.
A146155
Number of n X n binary arrays symmetric about main diagonal with all ones connected only either as two by three or three by two blocks.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =3a(5) =7a(6) =14a(7) =42a(8) =163a(9) =719a(10) =3628a(11) =22263a(12) =164206a(13) =1435593a(14) =15071126a(15) =189778079a(16) =2837151684a(17) =50511089269
External references
- oeis: A146155