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Smallest denominator of fraction using palindromes that approximates 'Pi' to at least n digits after the decimal point.
1

%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