64130
domain: N
Appears in sequences
- a(n) = [ C(2n,n)/n ].at n=10A024498
- Number of orbits of length n under the map whose periodic points are counted by A000984.at n=10A060165
- Erroneous version of A177454.at n=3A078464
- a(n) = (binomial(2*p,p) - 2)/p, where p = prime(n).at n=4A177454
- a(n) = 1/11*(binomial(n,11) - floor(n/11)).at n=10A215054