260813

Appears in sequences

• Quadruple primorial n#### = n#4.at n=16A114420
• Composite squarefree numbers n such that the ratio (n - 1/2)/(p(i) + 1/2) is an integer, where p(i) are the prime factors of n.at n=0A226111
• Nonequivalent ways to place two different markers (e.g., a pair of Go stones, black and white) on an n X n grid.at n=37A242709