1859550

Appears in sequences

• Stirling numbers of the second kind S(n+3, n).at n=20A001297
• Number of ways to place 3 points on an n X n square grid so that no more than 2 points are on a vertical or horizontal straight line.at n=14A279437
• Product_{n>=1} (1 + x^n)^a(n) = g.f. of A001147 (double factorial of odd numbers).at n=7A305870