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This sequence and A259988 are base-6 analogs of A007185 and A016090, written in base 6.
2

%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