177177
domain: N
Appears in sequences
- Column of Motzkin triangle A026300.at n=10A005324
- E.g.f.: exp(sin(x)/exp(x)).at n=12A009216
- Lucky numbers that are concatenations of a number k with itself.at n=23A032650
- Denominators of continued fraction convergents to sqrt(893).at n=15A042727
- a(n) = Sum_{d|n} phi(d)*3^(n/d).at n=11A054610
- Irregular triangle read by rows: T(n,m) = number of lattice paths of type {A^Q}_R terminating at point (n, m).at n=53A291082
- Expansion of (1/(1 - x))*Product_{k>=1} (1 - x^(3*k))/(1 - x^k).at n=50A304630