81231

Appears in sequences

• Number of irreducible polyhedral graphs with n faces.at n=7A006867
• Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 95.at n=2A031773
• Numbers m such that A327566(m) = Sum_{k=1..m} isigma(k) is divisible by m, where isigma(k) is the sum of infinitary divisors of k (A049417).at n=7A326488
• Reversed sum of the two previous terms, with a(1) = 1 and a(2) = 11.at n=18A350766