90213

Appears in sequences

• Number of n X n binary arrays symmetric about main diagonal with all ones connected only in a 110-111-001 pattern in any orientation.at n=10A146235
• Number of n X n binary arrays symmetric about the diagonal and under 90 degree rotation with all ones connected only in a 110-111-001 pattern in any orientation.at n=22A146237
• Number of n X n binary arrays symmetric about the diagonal and under 90 degree rotation with all ones connected only in a 110-111-001 pattern in any orientation.at n=23A146237
• Sum of first n Honaker primes.at n=34A276255