OFFSET
0,4
COMMENTS
The sequence seems to grow roughly as a(n) ~ c*2^n with c = 0.313...
LINKS
Hiroaki Yamanouchi, Table of n, a(n) for n = 0..2000
PROG
(PARI) N=1; s=0; for(n=1, 9e9, s+=A117943(n); n<N&&next; print1(s", "); N*=2)
CROSSREFS
KEYWORD
nonn
AUTHOR
M. F. Hasler, Mar 09 2015
EXTENSIONS
a(25)-a(34) from Hiroaki Yamanouchi, Mar 10 2015
STATUS
approved