OFFSET
1,2
COMMENTS
If u(1)=1 u(n)=ceiling(n/u(n-1)) then u(2k)=2 and u(2k+1)=k.
LINKS
Michael De Vlieger, Table of n, a(n) for n = 1..10000
MATHEMATICA
Nest[Append[#, Ceiling[(Length[#] + 1)/#[[#[[-1]] ]] ]] &, {1}, 84] (* Michael De Vlieger, Jul 04 2019 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Benoit Cloitre, Dec 31 2002
STATUS
approved