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%I #7 Oct 10 2019 00:36:41
%S 1,6,6,6,9,777,656,99,616,696,66,797,767,606,9,9,282,444,5995,9,656,
%T 77,131,22,838,2992,9,77,464,89298,919,656,39193,666,18381,7997,949,
%U 909,929,797,43734,703307,515,288737882,19191,404,919,595,21112,434,74647
%N Largest palindromic substring in 6^n.
%Y Cf. A046272.
%K nonn,base
%O 0,2
%A _Patrick De Geest_, Jun 15 1998
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