45240

Appears in sequences

• a(n) = (n+1)*(2*n+1)*(3*n+1).at n=19A011199
• Numbers k with the property that k is a substring of its base-6 representation.at n=6A038106
• Numbers n such that 65*2^n-1 is prime.at n=29A050558
• Numbers that can be expressed as the difference of the squares of primes in exactly six distinct ways.at n=25A092002
• Period of the decimal expansion of 1/F as F runs through the Fibonacci numbers greater than 1 and not divisible by 2 or 5.at n=25A175550
• Triangle T(n,k) represents the coefficients of (x^20*d/dx)^n, where n=1,2,3,...; generalization of Stirling numbers of second kind A008277, Lah-numbers A008297.at n=6A223522
• Numbers n such that the multiplicative group modulo n is the direct product of 6 cyclic groups.at n=41A272596
• Number of distinct products i*j*k*l*m for 1 <= i <= j <= k <= l <= m <= n.at n=31A284988
• a(n) = phi(n^5 - 1)/5 where phi is A000010.at n=10A319214