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A048430
Smallest denominator of fraction using palindromes that approximates 'Pi' to at least n digits after the decimal point.
1
7, 7, 212, 212, 377773, 519915, 2332332, 65144156, 309171903, 10319091301, 58981418985, 1833641463381, 1992590952991, 47417877871474, 704928828829407, 15508087878080551, 89528359195382598, 1823627796977263281
OFFSET
1,1
EXAMPLE
n=5 -> 1186811/377773 = 3.14159... correct to five digits after the decimal point.
CROSSREFS
Numerators in A048429.
Sequence in context: A099739 A261128 A353583 * A197860 A180321 A213150
KEYWORD
nonn,frac,base,more
AUTHOR
Patrick De Geest, Apr 15 1999
EXTENSIONS
a(15)-a(18) from Sean A. Irvine, Jun 17 2021
STATUS
approved