69918

Appears in sequences

• Numbers whose base-4 representation has exactly 9 runs.at n=8A043600
• Numbers n such that number of runs in the base 4 representation of n is congruent to 1 mod 8.at n=32A043851
• Numbers n such that number of runs in the base 4 representation of n is congruent to 0 mod 9.at n=8A043858
• Numbers k such that number of runs in the base 4 representation of k is congruent to 9 mod 10.at n=8A043876
• a(0) = 0, and for n > 0, (a(n)) gives the indices n for which d(n) > d(k) for k < n, where d is the difference sequence of (cos k + sin k).at n=28A299639