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This sequence and A259989 are base-6 analogs of A007185 and A016090, written in base 6.
2

%I #17 Jul 18 2015 16:59:40

%S 3,13,213,213,50213,350213,1350213,21350213,221350213,2221350213,

%T 52221350213,152221350213,5152221350213,55152221350213,

%U 155152221350213,4155152221350213,14155152221350213,314155152221350213,1314155152221350213,21314155152221350213

%N This sequence and A259989 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 3. - _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="/A259988/b259988.txt">Table of n, a(n) for n = 1..1000</a>

%o (Sage) def a(n) : return Integer(crt(1, 0, 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 More terms from _Eric M. Schmidt_, Jul 18 2015