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%I #5 Mar 30 2012 18:38:52
%S 1,2,4,5,8,10,16,20,22,25,28,32,37,40,44,50,52,64,70,80,88,100,110,
%T 112,125,128,130,146,148,154,160,170,176,190,200,202,205,208,220,230,
%U 250,256,274,280,286,290,310,320,352,364,370,400,410,430,440,442,448,470
%N Let rep(n) be the n-th repunit number, sequence gives values of n such that rep(n)==rep(10) (mod n).
%Y Cf. A002275.
%K easy,nonn
%O 1,2
%A _Benoit Cloitre_, Mar 05 2002
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