22826

Appears in sequences

• Number of bipartite partitions.at n=19A002762
• Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 12.at n=19A031600
• Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 12.at n=26A031690
• Even numbers k such that if a person is born in year k and lives not more than 100 years, then he never celebrates his prime birthday on a prime year.at n=23A124658
• Sphenic numbers k = p*q*r such that reversal(k) is also a sphenic number and reversal(k) = reversal(p)*reversal(q)*reversal(r).at n=20A242726
• Harary index of the n X n black bishop graph.at n=23A296198
• Harary index of the n X n white bishop graph.at n=22A296200