27429

Appears in sequences

• Sum of n plus its prime factors associated with A020700.at n=31A020905
• Number of unlabeled ternary cacti having n triangles.at n=9A052393
• Number of n X n binary arrays symmetric about both diagonal and antidiagonal with all ones connected only in a 1100-0100-0111-0001 pattern in any orientation.at n=15A147197
• Array read by antidiagonals: T(n,k) is the number of (planar) unlabeled k-ary cacti having n polygons.at n=75A303912