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%I #13 Jun 18 2021 01:12:01
%S 7,7,212,212,377773,519915,2332332,65144156,309171903,10319091301,
%T 58981418985,1833641463381,1992590952991,47417877871474,
%U 704928828829407,15508087878080551,89528359195382598,1823627796977263281
%N Smallest denominator of fraction using palindromes that approximates 'Pi' to at least n digits after the decimal point.
%e n=5 -> 1186811/377773 = 3.14159... correct to five digits after the decimal point.
%Y Numerators in A048429.
%K nonn,frac,base,more
%O 1,1
%A _Patrick De Geest_, Apr 15 1999
%E a(15)-a(18) from _Sean A. Irvine_, Jun 17 2021