712448

Appears in sequences

• a(n) = number of elements of order n in Mathieu simple group M_24 of order 244823040.at n=2A146074
• Expansion of (1 + x) * Product_{k>=1} (1 + x^k)/(1 - x^k).at n=35A309266
• a(n) is the smallest nonnegative integer k where exactly n pairs of positive integers (x, y) exist such that x^2 + 7*y^2 = k.at n=21A374159