73853

Appears in sequences

• 10-gonal (or decagonal) pyramidal numbers: a(n) = n*(n + 1)*(8*n - 5)/6.at n=38A007585
• Number of intersection points of diagonals of an n-gon in general position, plus number of vertices.at n=38A014626
• 2nd order recursive series having the property that the product of any two adjacent terms is a triangular number, T(b) = b(b+1)/2 where b equals term a(n) of related series A108262.at n=7A108261
• Odd decagonal pyramidal numbers.at n=19A218330
• Numbers k such that (22*10^k - 37)/3 is prime.at n=23A285785