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A048189 Let (u1,u2) be successive untouchable numbers such that phi(u1) = phi(u2); sequence gives values of u1. 4

%I #19 Sep 23 2022 05:37:51

%S 96,292,612,626,732,1186,1346,1522,1944,2198,3202,3270,3454,3684,3746,

%T 4322,5848,5950,6276,6396,6626,7466,7522,7932,7972,8482,8548,8676,

%U 12756,12868,13958,15342,15524,15852,15866,17550,17938,18002,18534,19516,20452,22716

%N Let (u1,u2) be successive untouchable numbers such that phi(u1) = phi(u2); sequence gives values of u1.

%H Amiram Eldar, <a href="/A048189/b048189.txt">Table of n, a(n) for n = 1..4309</a> (terms 1..81 from Michel Marcus)

%e 96 is a term since 96 and 120 are successive untouchable numbers and phi(96) = phi(120).

%e 292 is a term since 292 and 304 are successive untouchable numbers and phi(292) = phi(304).

%Y Cf. A000010, A005114, A048188, A048190, A048191.

%K nonn

%O 1,1

%A _Naohiro Nomoto_

%E Offset changed to 1 and more terms from _Michel Marcus_, Jun 08 2015

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Last modified March 28 09:04 EDT 2024. Contains 371240 sequences. (Running on oeis4.)