28875761731
domain: N
Appears in sequences
- Bessel polynomials y_n(x) (see A001498) evaluated at 2.at n=9A001517
- Numerators of convergents to e.at n=25A007676
- Expansion of e.g.f. exp(x*C(x)) = exp((1-sqrt(1-4*x))/2), where C(x) is the g.f. of the Catalan numbers A000108.at n=10A080893
- a(3n) = a(3n-1) + a(3n-2), a(3n+1) = 2n*a(3n) + a(3n-1), a(3n+2) = a(3n+1) + a(3n).at n=27A113873
- Numerators of the other-side convergents to e.at n=24A259589
- Numerators of a sequence of fractions converging to e.at n=16A340737