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%I #13 Dec 12 2021 22:39:52
%S 104,1,211,2,3,8311689,5,4,7,3698,399,130321,6,9,13,8,1477,2458624,10,
%T 725904,19,676,6751,18766224,14,52707600,489,24649,12,220433409,29,16,
%U 21,1250,2779,3694084,22,5184,37,18,27,1382976,20,729,43,128,217
%N Smallest x such that sigma(x) mod 210 = n.
%C Compare with A084303 and A097013.
%C Row 210 of A074625 (apart from different ordering). - _Michel Marcus_, Dec 19 2013
%H Michel Marcus, <a href="/A097014/b097014.txt">Table of n, a(n) for n = 0..209</a>
%e Several numbers belonging to odd residues are either large squares or twice-squares.
%e E.g.: r = n = 209: a(209) = 36324729 = 6027^2, sigma(6027^2) = 210*172974 + 209.
%e Full set is easily available running through squares or twice squares.
%Y Cf. A000203, A084301, A084303, A097011, A097012, A097013, A097015.
%K fini,nonn
%O 0,1
%A _Labos Elemer_, Aug 19 2004
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