27696
domain: N
Appears in sequences
- Denominators of continued fraction convergents to sqrt(578).at n=3A042107
- E.g.f.: A(x) = f(x*A(x)), where f(x) = (1+x)*exp(x).at n=5A088690
- Structured meta-anti-prism numbers, the n-th number from a structured n-gonal anti-prism number sequence.at n=15A100185
- Generalized Catalan numbers C(2,4;n)=C(4,2;n).at n=5A116874
- Number of quadruples [i,j,k,l] with all entries between 1 and n such that gcd(i,j) = gcd(k,l).at n=15A124162
- a(n) = 4*n*(4*n^2 + 1).at n=12A144965