OFFSET
1,2
COMMENTS
LINKS
J. H. Conway and Brady Haran, Look-and-Say Numbers (2014), Numberphile video.
Wikipedia, Look-and-say sequence.
EXAMPLE
The concatenation of the primes starts "23571113171923293137...".
a(1) = 1, a(2) = 2 as there is one '2' at the start of the string.
a(9) = 3, a(10) = 1 as the primes '11' and '13' from the substring '1113'. which starts with three 1's.
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Scott R. Shannon, Aug 15 2020
STATUS
approved