66481domain: NAppears in sequencesNumbers whose base-3 representation has exactly 11 runs.at n=11A043591Numbers n such that number of runs in the base 3 representation of n is congruent to 1 mod 10.at n=31A043816Number of binary strings of length n with no substrings equal to 0000 0011 or 0101.at n=21A164426