115532

Appears in sequences

• a(n) = 100*n^2 - 2*n.at n=34A158129
• Triangle read by rows: T(n,m) (n >= m >= 1) = number of chambers (or regions) formed by drawing the line segments connecting any two of the (n+1) X (m+1) lattice points in an n X m lattice polygon.at n=27A288187