%I #13 May 25 2024 10:42:14

%S 20,936,1224,1250,1368,1656,2088,2232,2664,2952,3096,3384,3816,4248,

%T 4392,4824,5112,5256,5688,5976,6408,6984,7272,7416,7704,7848,8136,

%U 9144,9432,9864,10008,10728,10872,11304,11736,11780,12024,12456,12888,13032,13752,13896,14060,14184,14328,15192,16056,16340,16344,16488

%N Positions of +4's in A346242.

%C a(56) = 18785 is the first odd term.

%C Of the first 20000 terms, 11849 are multiples of 72, and apparently, for any prime p >= 13, 72*p is included in this sequence. - _Antti Karttunen_, May 24 2024

%H Antti Karttunen, <a href="/A354814/b354814.txt">Table of n, a(n) for n = 1..20000</a>

%H <a href="/index/Pri#primorialbase">Index entries for sequences related to primorial base</a>

%o (PARI) isA354814(n) = (4==A346242(n));

%Y Cf. A346242.

%Y Cf. also A372564.

%K nonn

%O 1,1

%A _Antti Karttunen_, Jun 07 2022