69938

Appears in sequences

• Numbers whose base-4 representation has exactly 9 runs.at n=19A043600
• Numbers n such that number of runs in the base 4 representation of n is congruent to 0 mod 9.at n=19A043858
• Numbers k such that number of runs in the base 4 representation of k is congruent to 9 mod 10.at n=19A043876
• Antidiagonal sums of the square array A096583, in which the n-th diagonal equals the convolution of the n-th row with the antidiagonal sums (this sequence).at n=19A096584
• Numbers k such that sigma(k) + phi(k) is a brilliant number (A078972).at n=22A115916
• Number of partitions of n that contain {1,2} minus number of partitions of n that contain neither 1 nor 2.at n=47A324368