135679

Appears in sequences

• Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 83 ones.at n=7A031851
• Terms k of A002977 such that both (k-1)/2 and (k-1)/3 are also terms of A002977.at n=26A085249
• a(n) = n*(16*n^2 + 3*n - 13)/6.at n=37A172078