A299040 Number of digits in the base-n representation of the last base-n narcissistic number.

1, 3, 4, 14, 18, 23, 29, 30, 39, 45, 51, 61, 64, 67, 73

Offset

2,2

Links

Table of n, a(n) for n=2..16.

W. Schneider, Perfect Digital Invariants: Pluperfect Digital Invariants(PPDIs)

Wikipedia, Narcissistic number

Example

In base 5, the last narcissistic number is 2415951874 which is 14421440424444 written in base 5 which is 14 digits long so a(5)=14.

Crossrefs

Cf. A005188, A259347.

Sequence in context: A282307 A282604 A281524 * A297839 A279938 A280331

Adjacent sequences: A299037 A299038 A299039 * A299041 A299042 A299043

Keyword

nonn,base,more,hard

Author

Tim Johannes Ohrtmann, Feb 01 2018

Status

approved