39975
domain: N
Appears in sequences
- a(n) = 625*n^2 - 25.at n=7A157918
- a(n) = 64*n^2 - n.at n=24A157948
- The Wiener index of the Dutch windmill graph D(5,n) (n>=1).at n=40A180579
- a(n) = n^4/8 + (5*n^3)/12 - n^2/8 - (5*n)/12 + 1.at n=24A226639
- a(n) = (n + 1)*(6*n^4 - 21*n^3 + 31*n^2 - 31*n + 30)/30.at n=12A267691
- Number of distinct regions among all circles that can be constructed on vertices of an n-sided regular polygon, using only a compass.at n=22A359046