290990700

Appears in sequences

• a(n) = 55*(n+1)*binomial(n+4,12).at n=9A027808
• Denominator of Sum_{k=1..n} (-1)^k / semiprime(k).at n=13A140123
• Denominator of Sum_{k=1..n} (-1)^k / semiprime(k).at n=14A140123
• a(n) = lcm(first n semiprimes).at n=13A164853
• a(n) = lcm(first n semiprimes).at n=14A164853
• Smallest integer with exactly n semiprime divisors.at n=31A220264
• Cubefree products of primorials (A002110).at n=36A220423
• Cubefree superabundant numbers: cubefree numbers (A004709) k such that sigma(k)/k > sigma(j)/j for all cubefree numbers j < k.at n=20A308618
• Cubefree colossally superabundant numbers: cubefree numbers (A004709) k for which there is a positive exponent epsilon such that sigma(k)/k^{1 + epsilon} >= sigma(j)/j^{1 + epsilon} for all cubefree j > 1, so that k attains the maximum value of sigma(k)/k^{1 + epsilon} over the cubefree numbers.at n=10A309875
• Recursive highly composite numbers: numbers with a record number of recursive divisors (A282446).at n=31A333931
• Squares of terms are the intersection of A025487 and A217584.at n=12A333969
• Indices of records in A353898.at n=29A353899
• Numbers that have more cubefree divisors than any smaller number.at n=26A377139