131900

Appears in sequences

• Integer Log of (Numerators convergent to Pi / Denominators convergent to Pi) = A001414(A002485/A002486) = A001414(A002485)-A001414(A002486).at n=18A136121
• Number of permutations of 0..n-1 with all sums of 3 adjacent terms unique.at n=8A152314