A023364 - OEIS

A023364

a(n+1) = a(n) converted to base 7 from base 2 (written in base 10).

2, 7, 57, 19552, 680483009297, 912636103453654574831532134829167, 133568351664635266141573629327103053181254256064476277123035496133898909306737386958053448197

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

The next term (a(8)) has 259 digits. - Harvey P. Dale, Sep 04 2024

LINKS

John Cerkan, Table of n, a(n) for n = 1..9

MATHEMATICA

NestList[FromDigits[IntegerDigits[#, 2], 7]&, 2 , 6] (* Harvey P. Dale, Sep 04 2024 *)

CROSSREFS

Sequence in context: A270395 A105183 A269994 * A120952 A270404 A270315

Adjacent sequences: A023361 A023362 A023363 * A023365 A023366 A023367

KEYWORD

nonn,base

AUTHOR

David W. Wilson

EXTENSIONS

a(7) from Sean A. Irvine, Jun 02 2019

STATUS

approved