20949

Appears in sequences

• Numbers k such that the continued fraction for sqrt(k) has even period and if the last term of the periodic part is deleted the central term is 96.at n=35A031594
• a(n) = 997*n + 1009.at n=20A100776
• G.f.: Sum_{n>=0} x^n / (1-x)^sigma(n).at n=12A227237
• Number of compositions of n such that the smallest part has multiplicity five.at n=13A241865
• Number of subsets of {1..n} whose harmonic mean is an integer.at n=40A339453