515100

Appears in sequences

• a(n) = lcm(3n+1, 3n+2, 3n+3).at n=33A061495
• a(1) = 6; for n>1, a(n) = prime(n)*(prime(n)^2 - 1)/2.at n=25A117762
• Half of product of three numbers: n-th prime, previous and following number.at n=25A127918
• Least k formed by the concatenation of two numbers n and d such that d is the n-th divisor of k, or 0 if no such k exists.at n=50A257491
• Numbers m such that the concatenation of k and the k-th divisor of m is equal to m for some k.at n=30A258738
• Orders of the groups PSL(m,q) in increasing order as q runs through the prime powers (without repetitions).at n=37A334994
• Orders of the groups PSL(m,q) in increasing order as q runs through the prime powers (with repetitions).at n=40A335000
• Orders of the finite groups PSL_2(K) when K is a finite field with q = A246655(n) elements.at n=35A352806