1,2

Complement of A078174.

Table of n, a(n) for n=1..42.

For a(14) = 36: 36 = 2^2*3^3; (2+3)/2 is not integer.

Sequence in context: A054741 A177712 A176552 * A174164 A098902 A100367

Adjacent sequences: A176584 A176585 A176586 * A176588 A176589 A176590

nonn

Jaroslav Krizek, Apr 21 2010

approved