74364290
domain: N
Appears in sequences
- Squarefree kernel of lcm(binomial(n,0), ..., binomial(n,n)).at n=26A056606
- Product of primes < n that do not divide n.at n=26A066838
- 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=19A070971
- Denominator of b(n) = Sum_{k'<=n} 1/k', where k' denotes the squarefree numbers.at n=22A072983
- Denominator of b(n) = Sum_{k'<=n} 1/k', where k' denotes the squarefree numbers.at n=23A072983
- Denominator of b(n) = Sum_{k'<=n} 1/k', where k' denotes the squarefree numbers.at n=24A072983
- a(n) = A076926(n)/n.at n=8A076927
- Denominator of 1 - Sum_{i=1..n} Bernoulli(i).at n=24A100650
- Denominator of 1 - Sum_{i=1..n} Bernoulli(i).at n=25A100650
- Denominator of Sum_{i=1..n} 1/C(2*i,i).at n=12A112098
- a(n) = product[k=0..n] P(k), where P(k) is the smallest prime > 3*n. a(n) = product[k=0..n] A118751(k).at n=7A118752
- Least k such that the Jacobsthal function A048669(k) = n.at n=19A128759
- Denominator of the polynomial A_l(x) = sum_{d=1..l-1} x^(l-d)/d for index l=2n+1 evaluated at x=12.at n=11A145632
- Denominator of the fraction c(n) defined in A172030.at n=25A172031
- Denominator of the n-th term of the inverse binomial transform of 1, 1/2, B_4, B_6, B_8,..., a modified Bernoulli sequence.at n=13A174276
- Denominators of row sums of the triangle (lower triangular matrix) log(F) with F:=A037027 (Fibonacci convolution matrix).at n=28A181350
- Denominators of a companion to the Bernoulli numbers.at n=26A192366
- Let a(n) and the ratio r(n) = greatest prime divisor of a(n) / sum of the distinct prime divisors of a(n). The sequence a(n) is defined by the recurrence a(1) = 2, a(n+1) such that r(n+1) < r(n).at n=24A203461
- Denominators of the probability of success in sultan's dowry problem with n daughters.at n=22A226243
- Denominators of r(n) = r(n-1) + r(n-2) + B_(n-2), where B_n is the n-th Bernoulli number A027641(n)/A027642(n).at n=27A228151