OFFSET

1,1

FORMULA

Let sd2(n) the sum of digits of n written in base 2. Then a(n) =1 + Floor(n/sd2(n)).

EXAMPLE

9 is written 1001 in base 2, then sd2(9)=2; 4*2<9<5*2; then (c,9)=5

CROSSREFS

KEYWORD

easy,nonn,base

AUTHOR

Philippe LALLOUET (philip.lallouet(AT)wanadoo.fr), Jul 27 2007

STATUS

approved