344212

Appears in sequences

• a(n) = spt(13n+6)/13 where spt(n) = A092269(n).at n=4A220513
• Place a point on the integer coordinates, up to |n|, along all four axial directions on a Cartesian plane, and then join an infinite straight line between every pair of points: a(n) is the number of finite edges created in the resulting graph.at n=12A386561