%I #17 Jul 27 2015 17:20:49
%S 4,44,344,5344,5344,205344,4205344,34205344,334205344,3334205344,
%T 3334205344,403334205344,403334205344,403334205344,400403334205344,
%U 1400403334205344,41400403334205344,241400403334205344,4241400403334205344,34241400403334205344
%N This sequence and A259988 are base-6 analogs of A007185 and A016090, written in base 6.
%C See Schut (1991) for precise definition.
%C Ignoring repetitions, the subsequence of A201821 of terms ending in 4. - _Eric M. Schmidt_, Jul 18 2015
%D C. P. Schut, Idempotents. Report AM-R9101, Centrum voor Wiskunde en Informatica, Amsterdam, 1991.
%H Eric M. Schmidt, <a href="/A259989/b259989.txt">Table of n, a(n) for n = 1..1000</a>
%o (Sage) def a(n) : return Integer(crt(0, 1, 2^n, 3^n).str(6)) # _Eric M. Schmidt_, Jul 18 2015
%Y Cf. A007185, A016090, A201821, A237583, A259986-A259991.
%K nonn,base
%O 1,1
%A _N. J. A. Sloane_, Jul 13 2015
%E Corrected and extended by _Eric M. Schmidt_, Jul 18 2015