82865

Appears in sequences

• Number of positive integers <= 2^n of the form x^2 + 5*y^2.at n=19A054150
• a(1) = 1, a(2n) = smallest prime > (2n-1)-th partial sum of the sequence itself and a(2n+1) = smallest composite number > 2n-th partial sum of the sequence.at n=16A076636
• Numbers k such that the k-th triangular number contains only digits {3,4,5}.at n=11A119183
• Numbers k such that k and k^2 use only the digits 0, 2, 5, 6 and 8.at n=47A136913