847425747

Appears in sequences

• a(n) = n^(n+2)*(n^2 - 1)*(n+3)*(n+2)*(5*n - 7)/5760.at n=4A060349
• a(n) = 3*7^n.at n=10A169634
• a(n) is the smallest nonnegative integer k where exactly n ordered pairs of positive integers (x, y) exist such that x^2 + x*y + y^2 = k.at n=11A374090