1939938
domain: N
Appears in sequences
- Coefficients of Legendre polynomials.at n=10A001800
- Expansion of 1/(2*x) * (1/(1-4*x)^(3/2)-1).at n=9A033876
- Squarefree kernel of lcm(binomial(n,0), ..., binomial(n,n)).at n=19A056606
- a(n) = 3*binomial(2*n, n-1).at n=11A062561
- Triangle read by rows: T(n,k) = A002110(n)/prime(n+1-k), k = 1..n.at n=33A077011
- Denominators of row sums in triangle described in A093412.at n=18A093419
- Number of permutations of length n with exactly 3 occurrences of the pattern 2-13.at n=10A094219
- a(0) = 1; for n>0, if gcd(a(n-1),n) = 1 then a(n) = n*a(n-1) else a(n) = least integer multiple of a(n-1)/n.at n=21A094299
- Denominator of -3*n + 2*(1+n)*HarmonicNumber(n).at n=19A096620
- Denominator of 1 - Sum_{i=1..n} Bernoulli(i).at n=20A100650
- Denominator of 1 - Sum_{i=1..n} Bernoulli(i).at n=21A100650
- Denominators of partial sums of (p+q)/p*q, where p and q are primes.at n=14A120832
- Triangle T(n,k) read by rows: T(n,0) = A002110(n) and T(n,k) = A002110(n)/prime(k) for 1<=k<=n.at n=39A121281
- Sum of root degrees of all symmetric ordered trees with n edges.at n=21A143360
- Denominator of the Harary number for the cycle graph C_n.at n=39A160047
- Denominator of the Harary number for the path graph P_n.at n=19A160049
- The radical of the swinging factorial A056040 for odd indices.at n=10A163640
- The radical of the swinging factorial A056040.at n=21A163641
- Denominator of the fraction c(n) defined in A172030.at n=21A172031
- Denominators of a companion to the Bernoulli numbers.at n=22A192366