72816

Appears in sequences

• Values of m such that N = (am+1)(bm+1)(cm+1) is a 3-Carmichael number (A087788), where a,b,c = 1,2,57.at n=16A065697
• Composite numbers k such that k*phi(k) is in A002378.at n=22A256545
• a(n) = 6*n*(9*n-5).at n=37A277984
• Poincaré series for invariant polynomial functions on the space of binary forms of degree 13.at n=14A293938
• Least k such that A000668(n) + k is prime, where A000668(n) is the n-th Mersenne prime.at n=27A365160