54265
domain: N
Appears in sequences
- Number of partitions of n if there are two kinds of 1, two kinds of 2 and two kinds of 3.at n=26A000098
- Number of protruded partitions of n with largest part at most 10.at n=17A005116
- Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 22.at n=15A031610
- Poincaré series [or Poincare series] (or Molien series) for a certain six-fold wreath product P_6.at n=46A091769
- Expansion of (1 + x - x^3 - 2*x^4)/(1 - x^2 - x^3 - x^4 - x^5).at n=28A109544
- Triangle read by rows: T(n, k) = binomial(3*n, k-1) + binomial(3*n, n-k).at n=21A156003
- Triangle read by rows: T(n, k) = binomial(3*n, k-1) + binomial(3*n, n-k).at n=27A156003
- E.g.f.: Product_{k>=1} (1 + x^(k*(k + 1)/2) / (k*(k + 1)/2)!).at n=21A334385
- a(n) = Sum_{k=0..floor(5*n/14)} binomial(k,5*n-14*k).at n=60A389718