138864

Appears in sequences

• Number of 1:3:sqrt(10) proportioned triangles on a (n+1) X (n+1) grid.at n=28A190102
• Monotonic ordering of set S generated by these rules: if x and y are in S then 2xy-x-y is in S, and 3 is in S.at n=25A192525
• Numbers k such that e(k) > 1 and k == e(k) (mod lambda(k)), where e(k) = A051903(k) is the maximal exponent in prime factorization of k.at n=25A327295