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A069028 Powers of 3 with strictly increasing sum of digits. 8

%I #4 Aug 05 2015 11:50:47

%S 1,3,9,729,19683,4782969,94143178827,847288609443,7625597484987,

%T 16677181699666569,328256967394537077627,26588814358957503287787,

%U 717897987691852588770249,381520424476945831628649898809

%N Powers of 3 with strictly increasing sum of digits.

%H Charles R Greathouse IV, <a href="/A069028/b069028.txt">Table of n, a(n) for n = 1..167</a>

%o (PARI) print1(r=t=1); for(n=1,99, s=sumdigits(t*=3); if(s>r,r=s; print1(", "t))) \\ _Charles R Greathouse IV_, Aug 05 2015

%Y Cf. A069027.

%K nonn,base

%O 1,2

%A _Amarnath Murthy_, Apr 02 2002

%E More terms from Larry Reeves (larryr(AT)acm.org), Jun 26 2002

%E a(11)-a(14) from _Charles R Greathouse IV_, Aug 05 2015

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Last modified August 10 11:24 EDT 2024. Contains 375056 sequences. (Running on oeis4.)