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%I #7 Aug 04 2021 02:23:49
%S 5,7,13,26,30,60,66,71,79,113,123,135,160,227,255,265,288,338,342,353,
%T 392,408,484,514,517,538,660,666,719,736,771,852,869,973,1034,1081,
%U 1111,1133,1251,1269,1309,1362,1396,1448,1456,1477,1482,1592,1656,1702,1756
%N A090609 indexed by A000040.
%F a(n)=k such that A000040(k)=A090609(n).
%Y Cf. A089144, A090606, A090607, A090608, A090609.
%K nonn,easy
%O 1,1
%A _Ray Chandler_, Dec 06 2003
%E Offset changed to 1 by _Jinyuan Wang_, Aug 03 2021
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