415134720

Appears in sequences

• Denominator of probability that 2 elements of S_n chosen at random (with replacement) generate S_n.at n=12A040174
• (n-2)!/n when an integer.at n=6A218385
• The antibracket constants {x_n}^n.at n=8A272688
• a(n) = 5^n*Gamma(n+1/5)*Gamma(n+1)/Gamma(1/5).at n=6A276482
• Products of nonprimitive roots of n, or 0 if n = 2 or has no primitive roots.at n=13A347946