OFFSET
1,3
LINKS
David A. Corneth, Table of n, a(n) for n = 1..10000
Eric Weisstein's World of Mathematics, Repunit
EXAMPLE
13566531 = 11*111*11111. - David A. Corneth, Mar 26 2021
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Ilya Gutkovskiy, Apr 14 2020
STATUS
approved