100280245065
domain: N
Appears in sequences
- Denominators of partial sums of Bernoulli numbers B_{2n} = A000367/A002445.at n=16A035077
- Squarefree kernel of lcm(binomial(n,0), ..., binomial(n,n)).at n=31A056606
- Product of primes < n that do not divide n.at n=31A066838
- One half of product of first n primes A000040.at n=10A070826
- Denominator of Sum_{k=1..n} mu(k)/k when it changes sign.at n=11A070891
- a(n) is the smallest positive integer m for which A070194(m) (i.e., the maximal gap in {k|gcd(k,m) = 1, 1 <= k <= m-1}) is n.at n=28A070971
- Denominator of Sum_{k=1..n} phi(k)/k.at n=30A072155
- For the n-th squarefree number: the product of all primes greater than its smallest factor and less than its largest factor and not dividing it.at n=46A073483
- Product of primes greater than the greatest prime factor of n but not greater than n.at n=31A083722
- Denominator of 1 - Sum_{i=1..n} |Bernoulli(i)|.at n=30A100652
- Denominator of 1 - Sum_{i=1..n} |Bernoulli(i)|.at n=31A100652
- Denominator of 1 - Sum_{i=1..n} |Bernoulli(i)|.at n=34A100652
- Denominators of partial sums of (p+q)/p*q, where p and q are primes.at n=23A120832
- a(n) is the denominator of Sum_{i=1..n} i!/(i^2).at n=31A121566
- a(n) is the denominator of Sum_{i=1..n} i!/(i^2).at n=32A121566
- Product of 10 consecutive primes.at n=1A127342
- Least k such that the Jacobsthal function A048669(k) = n.at n=28A128759
- First odd composite N divisible by precisely the first n odd primes with N-2 prime.at n=9A136353
- a(n) is the smallest odd composite number m such that m+2 is prime and the set of distinct prime factors of m consists of the first n odd primes.at n=9A136354
- Increasing sequence obtained by union of two sequences A136353 and {b(n)}, where b(n) is the smallest composite number m such that m-1 is prime and the set of distinct prime factors of m consists of the first n primes.at n=19A136356