39785

Appears in sequences

• Numbers k such that (phi(k-2) + phi(k+2))/2 = phi(k); 2-phi/balanced numbers.at n=29A099633
• Positive numbers y such that y^2 is of the form x^2+(x+409)^2 with integer x.at n=9A160577
• Number of integer partitions of n whose negated run-lengths are unimodal.at n=45A332638