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Sums of 3 distinct powers of 11.
1

%I #12 Dec 23 2016 21:46:26

%S 133,1343,1453,1463,14653,14763,14773,15973,15983,16093,161063,161173,

%T 161183,162383,162393,162503,175693,175703,175813,177023,1771573,

%U 1771683,1771693,1772893,1772903,1773013,1786203,1786213,1786323

%N Sums of 3 distinct powers of 11.

%H Robert Israel, <a href="/A038491/b038491.txt">Table of n, a(n) for n = 0..10000</a>

%F a(A000292(m+1)+k) = a(A000292(m)+k) + 10*11^(m+2) for 0<=k<=A000217(m). - _Robert Israel_, Dec 23 2016

%p seq(seq(seq(11^a+11^b+11^c,c=0..b-1),b=1..a-1),a=2..10); # _Robert Israel_, Dec 23 2016

%t TakeWhile[#, # <= 1800000 &] &@ Sort@ Map[Total, 11^Subsets[Range[0, 8], {3}]] (* _Michael De Vlieger_, Dec 23 2016 *)

%Y Base-11 interpretation of A038445.

%Y Cf. A000217, A000292.

%K nonn,easy

%O 0,1

%A _Olivier GĂ©rard_