2704155
domain: N
Appears in sequences
- Euler characteristics of polytopes.at n=24A006482
- 11-dimensional centered tetrahedral numbers.at n=12A008505
- Central binomial coefficient - 1.at n=24A014495
- Number of combinations of n things from 1 to n at a time, with repeats allowed.at n=11A030662
- A054525 * A000984.at n=12A134764
- a(n) = binomial(2*n-2, n-1) + (-1)^n.at n=12A286033
- a(n) = Sum_{d|n} mu(n/d) * binomial(n+d-2, n-1).at n=12A332470