89969

Appears in sequences

• Harmonic mean of digits is 8.at n=15A062185
• First occurrence of n in A212844.at n=13A213085
• Number of orderless same-trees of weight n.at n=39A289078
• a(n) = Sum_{1 <= i, j, k, l <= n} gcd(i,j,k,l).at n=16A344523