|
%I #15 Dec 15 2019 16:33:19
%S 1,2,4,5,7,8,11,13,16,17,19,22,25,26,32,34,35,37,38,40,44,47,50,53,56,
%T 58,64,65,67,68,71,76,80,82,85,86,95,97,98,101,103,106,110,112,116,
%U 118,119,121,130,131,134,137,142,143,145,149,152
%N a(n) = (b(n) + 1)/2, where b = A000959 (the lucky numbers).
%H Amiram Eldar, <a href="/A049781/b049781.txt">Table of n, a(n) for n = 1..10000</a>
%H R. K. Guy, <a href="https://doi.org/10.1007/978-0-387-26677-0_3">Unsolved Problems in Number Theory</a>, Springer, 2004, C3, pp. 164-165.
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/LuckyNumber.html">Lucky number</a>.
%H Wikipedia, <a href="http://en.wikipedia.org/wiki/Lucky_number">Lucky number</a>.
%Y Cf. A000959.
%K nonn
%O 1,2
%A _Clark Kimberling_
|
