43603

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=34A081393
• 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=34A081395
• Positive numbers y such that y^2 is of the form x^2+(x+343)^2 with integer x.at n=23A157246
• Sum of the third largest parts of the partitions of 4n into 4 parts.at n=19A242727
• Semiprimes that are also the sums of two, three and four successive semiprimes.at n=7A370685