168610

Appears in sequences

• Number of nonempty subsets of {1,2,...,n} in which exactly 1/4 of the elements are <= (n-2)/2.at n=22A047185
• Number of inequivalent ways of placing 2 nonattacking rooks on n X n board up to rotations and reflections of the board.at n=40A307304
• Heptagonal numbers which are products of four distinct primes.at n=19A351867