154755domain: NAppears in sequencesa(n) = Sum_{1 <= x, y <= n} lcm(x, y).at n=29A064951Greatest number m such that the fractional part of Pi^A137994(n) <= 1/m.at n=14A153713Greatest number m such that the fractional part of Pi^A153710(n) <= 1/m.at n=15A153714