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%I #24 May 30 2016 18:26:07
%S 0,1,2,3,4,5,6,7,8,9,10,11,13,26,39,52,65,78,91,104,117,130,143,157,
%T 314,471,628,785,942,1099,1256,1413,1570,1727,1885,3770,5655,7540,
%U 9425,11310,13195,15080,16965,18850,20735,22621,45242,67863,90484,113105
%N a(n) in base 12 is a repdigit.
%H Harvey P. Dale, <a href="/A048336/b048336.txt">Table of n, a(n) for n = 0..1000</a>
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/Repdigit.html">Repdigit</a>
%F From _Chai Wah Wu_, May 30 2016: (Start)
%F a(n) = 13*a(n-11) - 12*a(n-22) for n > 21.
%F G.f.: x*(11*x^10 + 10*x^9 + 9*x^8 + 8*x^7 + 7*x^6 + 6*x^5 + 5*x^4 + 4*x^3 + 3*x^2 + 2*x + 1)/(12*x^22 - 13*x^11 + 1). (End)
%F a(n) = (n - 11*floor((n-1)/11))*(12^floor((n+10)/11) - 1)/11. - _Ilya Gutkovskiy_, May 30 2016
%t Join[{0},Sort[Flatten[Table[FromDigits[Table[n,{i}],12],{n,11},{i,99}]]]] (* _Harvey P. Dale_, May 01 2013 *)
%o (Python)
%o A048336_list = [0] + [int(d*l,12) for l in range(1,10) for d in '123456789ab'] # _Chai Wah Wu_, May 30 2016
%Y Cf. A010785, A033025, A028987, A028988.
%K nonn,base,easy
%O 0,3
%A _Patrick De Geest_, Feb 15 1999
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