OFFSET

1,1

COMMENTS

Conjecture: lim k->infinity (b(k)-k)/log(k) = f(n), constant depending on n. f(n) seems erratic: f(2)=2.9..., f(3)=2.5..., f(4)=3.2..., f(5)=2.25..., f(6)=4.0...

FORMULA

a(n) seems to be asymptotic to c*log(n) with c=5.63...

EXAMPLE

If n=4, b(11)<0 and b(k)>0 for any k>11 hence a(4)=11.

CROSSREFS

KEYWORD

nonn

AUTHOR

Benoit Cloitre, Oct 23 2002

STATUS

approved