%I #7 Nov 25 2012 23:47:09
%S 3,6,10,11,15,18,19,23,26,30,31,32,36,39,43,44,48,51,52,53,57,60,64,
%T 65,69,72,73,77,80,84,85,86,87,91,94,98,99,103,106,107,111,114,118,
%U 119,120,124,127,131,132,136,139,140,141,142,146,149,153,154,158,161
%N Complement of A219640. Natural numbers that do not occur in A219641.
%C These are positive integers i for which there does not exist any k such that A007895(i+k)=k.
%H A. Karttunen, <a href="/A219638/b219638.txt">Table of n, a(n) for n = 1..10000</a>
%o (Scheme with _Antti Karttunen_'s Intseq-library):
%o (define A219638 (COMPLEMENT 1 A219640))
%Y A219640, A219641, A219648. Analogous sequence for binary system: A055938, for factorial number system: A219658.
%K nonn
%O 1,1
%A _Antti Karttunen_, Nov 24 2012