188869

Properties

Appears in sequences

• Primes with multiplicative persistence value 7.at n=1A046507
• Numbers with multiplicative persistence value 7.at n=29A046516
• a(n) = ceiling(g(A000073(n))) with g(k) = (k-1)^2/(4k).at n=23A115792
• Primes of the form 2*n^2 + 46*n + 21.at n=26A217495
• Triangle read by rows: T(n,k) is the number of disconnected permutation graphs on n vertices with domination number k, with 2 <= k <= n.at n=36A320579
• a(2) = a(3) = 1; for n >3, a(n) = largest prime factor of n-th Tribonacci number.at n=23A366584
• Prime numbersat n=17072