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Engel expansion of A249270 = lim_{n->oo} (1/n)*Sum_{k=1..n} smallest prime not dividing k.
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%I #29 Sep 18 2021 00:21:19

%S 1,1,2,2,2,3,13,18,160,162,1421,1745,6097,6348,15474,65948,103608,

%T 366088,573005,1048188,1138953,3410520,6376825,279823002,306445433,

%U 1082288597,1489247033,2533043524,5591690612,8082600305,22159965172,62442143259,70275959860

%N Engel expansion of A249270 = lim_{n->oo} (1/n)*Sum_{k=1..n} smallest prime not dividing k.

%C Cf. A006784 for definition of Engel expansion.

%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/EngelExpansion.html">Engel Expansion</a>

%H Wikipedia, <a href="https://en.wikipedia.org/wiki/Engel_expansion">Engel Expansion</a>

%H <a href="/index/El#Engel">Index entries for sequences related to Engel expansions</a>

%Y Cf. A006784, A249270.

%K nonn

%O 1,3

%A _Corey Clemons_, Aug 04 2021

%E More terms from _Alois P. Heinz_, Aug 04 2021