65131

Appears in sequences

• a(n) = smallest number with shortest addition chain of length n.at n=21A003064
• Strong pseudoprimes to base 49.at n=24A020275
• Congruence classes of triangles which can be drawn using lattice points in n X n grid as vertices.at n=24A028419
• a(n) = Card{ (x,y,z,u,v) | lcm(x,y,z,u,v)=n }.at n=47A070921
• Column 3 of array in A133713.at n=10A133718
• Column 4 of triangle in A133721.at n=44A133723