171529806825
domain: N
Appears in sequences
- Numerator of Catalan(n)/2^(2n+1). Also, numerators of (2n-1)!!/(n+1)!. Odd part of the n-th Catalan number.at n=23A098597
- Catalan numbers halved and rounded to the next integer.at n=23A130380
- Numerator of moments of Chebyshev U- (or S-) polynomials.at n=46A134828
- Even Catalan numbers divided by 2.at n=18A152671
- Largest proper divisor of the Catalan number A000108(n).at n=21A152766
- Catalan trisection: A000108(3*n + 2)/2, n>=0.at n=7A187359