OFFSET
1,2
COMMENTS
Ratio of number of times 2 appears to number of times 1 appears tends towards (1+sqrt(5))/2. Ratio of number of times 2 appears to number of times 4m+2 appears tends towards ((1+sqrt(5))/2)^log_2(2m+1).
LINKS
Michael Gilleland, Some Self-Similar Integer Sequences
EXAMPLE
a(23)=2 since if 23 is in S(23) then so are 12, 3 and 2; however 1 need not be and so the smallest member of S(23) is 2.
CROSSREFS
KEYWORD
nonn
AUTHOR
Henry Bottomley, Nov 23 2000
STATUS
approved