A048431 Smallest numerator of fraction using palindromes that approximates 'e' to at least n digits after the decimal point.

11, 383, 878, 878, 1815181, 3195913, 115797511, 180525081, 430010034, 43438983434, 1149177719411, 4121706071214, 121109272901121, 179236404632971, 759247717742957, 6470297557920746, 6470297557920746, 1916390863680936191

Offset

1,1

Links

Table of n, a(n) for n=1..18.

Example

n=4: 878/323 = 2.7182... correct to four digits after the decimal point.

Crossrefs

Denominators in A048432.

Cf. A001113 (e).

Sequence in context: A051862 A006698 A348353 * A286914 A354513 A289731

Adjacent sequences: A048428 A048429 A048430 * A048432 A048433 A048434

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