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A373138 Numbers k such that A276085(k) is a multiple of 8, where A276085 is the primorial base log-function. 8

%I #12 Jun 23 2024 10:35:21

%S 1,15,20,21,28,39,51,52,55,57,68,76,77,81,87,93,108,115,116,124,141,

%T 143,144,161,183,185,187,188,192,201,205,209,215,219,225,237,244,256,

%U 259,265,267,268,287,291,292,295,297,299,300,301,303,309,315,316,319,327,339,341,355,356,371,381,388,391,396,400,404

%N Numbers k such that A276085(k) is a multiple of 8, where A276085 is the primorial base log-function.

%C Because A276085 is completely additive, this is a multiplicative semigroup; if m and n are in the sequence then so is m*n.

%H Antti Karttunen, <a href="/A373138/b373138.txt">Table of n, a(n) for n = 1..20000</a>

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

%o (PARI) \\ See A373137.

%Y Cf. A002110, A276085, A373137 (characteristic function).

%Y Subsequence of A369002.

%Y Cf. A373259 (subsequence).

%K nonn

%O 1,2

%A _Antti Karttunen_, May 26 2024

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Last modified July 11 17:52 EDT 2024. Contains 374234 sequences. (Running on oeis4.)