203318

Appears in sequences

• Composite numbers n such that sigma(n+24) = sigma(n) + 24.at n=32A054983
• Number of 3-dimensional polyominoes (or polycubes) with n cells and rotational symmetry group of order exactly 2.at n=14A066454
• Group the natural numbers into groups (1),(2),(3),(4),(5,6),(7,8,9),... so that the n-th group contains N(n) terms, where N(n) is the Narayana's cows sequence (A000930). Sequence contains the sum of the terms in the n-th group.at n=17A301877