OFFSET
1,3
EXAMPLE
As a(6)=1111 and a(7)=15, their digits are 111115, that is (5) 1's followed by (1) 1, so a(8) = 51.
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Floor van Lamoen, Nov 08 2005
EXTENSIONS
Definition adapted to offset by Georg Fischer, Jun 18 2021
STATUS
approved