585927201062
domain: N
Appears in sequences
- Numbers k such that n or more consecutive integers starting at k have the same number of distinct prime divisors.at n=19A045983
- Numbers k such that n or more consecutive integers starting at k have the same number of distinct prime divisors.at n=20A045983
- Numbers k such that n or more consecutive integers starting at k have the same number of distinct prime divisors.at n=21A045983
- Numbers k such that n or more consecutive integers starting at k have the same number of distinct prime divisors.at n=22A045983
- Let d(n) = number of distinct primes dividing n (A001221). Find smallest t such that d(t)=d(t+1)=...=d(t+n-1) but d(t-1) and d(t+n) are not = d(t); then a(n)=t.at n=22A048932
- a(n) is the first term in the first chain of at least n consecutive numbers each having exactly four distinct prime factors.at n=19A087977
- a(n) is the first term in the first chain of at least n consecutive numbers each having exactly four distinct prime factors.at n=20A087977
- a(n) is the first term in the first chain of at least n consecutive numbers each having exactly four distinct prime factors.at n=21A087977
- a(n) is the first term in the first chain of at least n consecutive numbers each having exactly four distinct prime factors.at n=22A087977
- Initial term of first run of exactly n consecutive numbers with 4 distinct prime factors.at n=22A185042
- Smallest positive number k such that there are exactly n successive equal values of A001221 starting at k, i.e., such that A305234(k) = n.at n=22A305235