OFFSET
1,3
LINKS
Vaclav Kotesovec, Table of n, a(n) for n = 1..3300
FORMULA
Apparently a(n) is asymptotic to C*2^n/sqrt(n) where C=0.6... [corrected by Vaclav Kotesovec, Feb 16 2019]
a(n) ~ c * 2^n / sqrt(n), where c = 0.6019481448829426024673784634152459777518844207090124563905577687332439... - Vaclav Kotesovec, Feb 16 2019
MATHEMATICA
a[1]=1; a[n_]:=a[n]=Ceiling[n/(n+1)*Sum[a[k], {k, 1, n-1}]]; Table[a[n], {n, 1, 40}] (* Vaclav Kotesovec, Feb 16 2019 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Benoit Cloitre, Apr 24 2003
STATUS
approved