33578000610
domain: N
Appears in sequences
- a(n) = binomial coefficient C(2n, n-1).at n=19A001791
- Binomial coefficient C(38,n).at n=18A010954
- Binomial coefficient C(38,n).at n=20A010954
- a(n) = binomial(n,18).at n=20A010971
- a(n) = binomial(n,20).at n=18A010973
- a(n) = binomial(n, floor(n/2)-1).at n=38A037955
- Binomial(n, phi(n)), where phi(n) is the Euler totient function.at n=37A066449
- Expansion of (1 + 2*x)*(1 + sqrt(1+4*x))/(2*sqrt(1+4*x)).at n=20A158500
- The radical of the swinging factorial A056040 for odd indices.at n=18A163640
- Expansion of ( 2F1([-1/4, 1/4]; [-1/2], 16*x) - 1 ) / (2*x).at n=9A186231
- Largest squarefree number in row n of Pascal's triangle.at n=38A238891
- a(n) equals the coefficient of x^n in Sum_{m>=0} (x^m + 1/x^m)^m for n > 0.at n=75A304638
- a(n) equals the coefficient of x^n in Sum_{m>=0} (x^m + 2 + 1/x^m)^m for n >= 1.at n=18A316592