A048432 Smallest denominator of fraction using palindromes that approximates 'e' to at least n digits after the decimal point.

4, 141, 323, 323, 667766, 1175711, 42599524, 66411466, 158191851, 15980308951, 432647746234, 1516290926151, 44553611635544, 65937388373956, 279311626113972, 2380289449820832, 2380289449820832, 705000799997000507

Offset

1,1

Links

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

Example

n=14: 121109272901121/65937388373956 = 2.71828182845904... correct to 14 digits after the decimal point.

Crossrefs

Numerators in A048431.

Cf. A001113 (e).

Sequence in context: A229453 A215606 A119038 * A332114 A262653 A299061

Adjacent sequences: A048429 A048430 A048431 * A048433 A048434 A048435

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