39855

Appears in sequences

• Number of points in N^5 of norm <= n.at n=11A055404
• Numbers n such that 4*10^n + 2*R_n + 7 is prime, where R_n = 11...1 is the repunit (A002275) of length n.at n=4A102987
• Partial sums of floor(3^n/10)/2.at n=11A178828
• Wiener index of a benzenoid consisting of a zig-zag chain of n hexagons (s=13; see the Gutman et al. reference).at n=18A193393