39025
domain: N
Appears in sequences
- Poincaré series [or Poincare series] (or Molien series) for mod 2 cohomology of universal W-group W(5).at n=7A014700
- Indices of 9-gonal numbers which are also triangular.at n=4A048907
- Indices of 9-gonal numbers which are also hexagonal.at n=2A048916
- a(n) = n*(5*n^2 - 3)/2.at n=25A063522
- A bisection of A063522.at n=12A160674
- Number of (w,x,y) with all terms in {0,...,n} and |w-x| + |x-y| + |y-w| < w+x+y.at n=37A213488
- a(0) = a(1) = a(2) = 1; for n > 2, a(n) = (a(n-1) + 1)*(a(n-2) + 1) / a(n-3).at n=10A276123