93187

Properties

Appears in sequences

• a(n) is the smallest k such that number of non-unitary prime divisors of central binomial coefficient, A000984(k) = C(2*k,k) equals n.at n=45A081393
• a(n) is the smallest value of k such that number of non-unitary prime divisors of k-th Catalan number, A000108(k) = C(2*k,k)/(k+1) equals n.at n=45A081395
• Numbers such that pre- and post-concatenating 7, 13 and 31 results in six primes.at n=6A125197
• Primes formed by concatenating k and 2k+1.at n=33A309808
• Number of multisets of exactly eight partitions of positive integers into distinct parts with total sum of parts equal to n.at n=22A320793
• a(n) = sum of minimal runlengths of all the partitions of n.at n=44A364808
• Prime numbersat n=9001