20920

Appears in sequences

• Numbers whose base-12 representation has exactly 5 runs.at n=25A043654
• Number of line segments connecting exactly 9 points in an n x n grid of points.at n=44A177725
• Cyclically smooth Lyndon words with 4 colors.at n=12A215336
• Number of integer partitions of n whose length is not a semi-sum of the parts.at n=40A367398