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%I #15 Mar 11 2024 04:20:37
%S 7744,665500,774400,5556600,6655000,7744000,55566000,66550000,
%T 77440000,447722888,448855888,555660000,665500000,774400000,
%U 1155775544,5500002244,5511005500,5556600000,6655000000,7744000000,11000004488,11122233444,22244466888
%N Powerful numbers (A001694) made of nontrivial runs of identical digits.
%C A run of length 1 is trivial.
%H Amiram Eldar, <a href="/A116064/b116064.txt">Table of n, a(n) for n = 1..201</a> (terms below 10^18)
%H <a href="/index/Pow#powerful">Index entries for sequences related to powerful numbers</a>.
%e 448855888 = 2^4*13^3*113^2.
%Y Intersection of A001694 and A033023.
%K nonn,base
%O 1,1
%A _Giovanni Resta_, Feb 13 2006
%E a(16)-a(23) from _Donovan Johnson_, Jun 29 2011
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