1060290

Appears in sequences

• Denominators of the partial sums of the reciprocals of twice the heptagonal numbers (k + 1)*(5*k + 2) = A135706(k+1) = 2*A000566(k+1), for k >= 0.at n=5A294827
• a(n) is the least number k that has exactly n divisors <= sqrt(k) of the form 4*j+3.at n=22A379683