A394638 - OEIS

%I #8 Apr 03 2026 07:29:09

%S 78,126,342,378,438,1086,1300,1422,1566,1996,2058,3078,3318,3916,3942,

%T 4000,4446,4636,4966,4998,5166,5476,6802,7600,8286,8418,8778,8860,

%U 9318,9738,10158,10660,11238,12342,13098,13120,13156,13326,13686,13900,14080,15438,16878

%N Start of exactly four even numbers that are totient numbers (A002202).

%C Subsequence of A333021.

%e 78, 80, 82, and 84 are totient numbers but 76 and 86 are not so 78 is a term.

%Y Cf. A002202, A333021, A393544, A394635, A394636, A394637, A394639, A394640.

%K nonn

%O 1,1

%A _Jud McCranie_, Mar 29 2026