75349

Appears in sequences

• a(n) = A113166(n) - Fibonacci(n-1), where Fibonacci(n) = A000045(n).at n=51A113486
• Composite numbers for which the root mean square of proper divisors is an integer.at n=37A247135
• Number of wedged n-spheres in the homotopy type of the neighborhood complex of Kneser graph KG_{3,n}.at n=20A342737
• Number of representations of n! - 1 as p*q + p*r + q*r with three odd primes p <= q <= r.at n=17A369242