69915

Appears in sequences

• Numbers whose base-4 representation has exactly 9 runs.at n=5A043600
• Numbers n such that number of runs in the base 4 representation of n is congruent to 1 mod 8.at n=29A043851
• Numbers n such that number of runs in the base 4 representation of n is congruent to 0 mod 9.at n=5A043858
• Numbers k such that number of runs in the base 4 representation of k is congruent to 9 mod 10.at n=5A043876
• a(n) = Sum_{j=1..n} A003718(j-1)*prime(j).at n=42A342604