33626

Appears in sequences

• a(n) = 7 + floor(Sum_{j=1..n-1} a(j) / 2).at n=21A120136
• Composite squarefree numbers n such that p-d(n) divides n+d(n), where p are the prime factors of n and d(n) the number of divisors of n.at n=20A228301
• Numbers that are the sum of some fixed power of the digits of their ten's complement.at n=4A302649
• Number of integer partitions of n whose product is a powerful number.at n=47A330106
• Array read by rows: T(m,n) is the number of m-digit semiprimes with last digit n, 0 <= n <= 9.at n=51A374940