254540

Appears in sequences

• Smallest number such that n-th iterate of Chowla function is 0.at n=38A002954
• Smallest number m such that m*(m+1) has at least n distinct prime factors.at n=9A059958
• a(n) is the first term in a chain of at least n consecutive numbers, each having exactly m = 5 distinct prime factors.at n=1A087978
• a(n) is the smallest number m such that each of the numbers m and m+1 has n distinct prime divisors.at n=4A093548
• Numbers n such that n and n+1 have 5 distinct prime factors.at n=0A140079
• Numbers k such that k and k+1 each have at least 5 distinct prime factors.at n=0A321505
• a(n) is the index of the smallest triangular number with exactly n distinct prime factors.at n=10A359017
• Square array T(n, k), n > 1 and k >= 1, read by upward antidiagonals, give the smallest number that starts a sequence of exactly k consecutive numbers, each having exactly n distinct prime factors (counted without multiplicity), or -1 if no such number exists.at n=11A375287
• Initial term of first run of exactly n consecutive numbers with exactly 5 distinct prime factors.at n=1A384507