A180462 a(n) is the smallest number m such that sigma(m)=34^n, or 0 if m does not exist.

1, 0, 0, 38659, 1333447, 45356239, 1542131167, 52432478719, 0, 44114690056791, 1545604624685757, 52550557239372861, 1542390446782691499, 52463299805385993363, 1783774217997898256739, 60648345436543315211523, 2091915317967934350057159, 69957029735592536691912261

Offset: 0

Author

Walter Kehowski, Sep 06 2010

Keywords

• nonn

Examples

			a(3)=38659=67*577 since sigma(67*577)=(2^2*17)*(2*17^2)=2^3*17^3 and 38659 is the smallest such number.
		

Links

• Max Alekseyev, Table of n, a(n) for n = 0..100

Crossrefs

Cf. A048251, A110077, A180265, A180460, A180461, A180463, A180464.

Extensions

Terms a(16) onward from Max Alekseyev, Mar 04 2014