3483480

Appears in sequences

• a(n) = (n+1)*(2*n+1)*(3*n+1)*(4*n+1).at n=19A011245
• Smallest triangular number divisible by exactly n triangular numbers.at n=24A076983
• Triangle read by rows: T(n,k) is the number of permutations of [n] having k cycles with at least 3 alternating runs (it is assumed that the smallest element of a cycle is in the first position), 0<=k<=floor(n/4).at n=31A187250
• Numbers with prime factorization pqrstuv^3.at n=4A190316
• 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=10A223522
• GCD of A002443(n) and A002444(n), numerator and denominator in Feinler's formula for the Bernoulli number B_{2n}.at n=42A266911
• Numbers n such that the multiplicative group modulo n is the direct product of 8 cyclic groups.at n=4A272598