42855

Appears in sequences

• Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 69.at n=2A031747
• a(n) = 1 + Sum_{i=1..n} S2(i)*2^i, where S2(n) is digit sum of n, n in binary notation.at n=13A135570
• Partial sums of A299266.at n=38A299267