OFFSET
1,3
FORMULA
a(n)= sum_{i=1..n} A004257(i). - R. J. Mathar, Sep 08 2008
MAPLE
A004257 := proc(n) option remember ; round(log[2](n)) ; end: A092757 := proc(n) local i ; add( A004257(i), i=1..n) ; end: for n from 1 to 100 do printf("%d, ", A092757(n)) ; od: # R. J. Mathar, Sep 08 2008
MATHEMATICA
Accumulate[Round[Log[2, Range[60]]]] (* Harvey P. Dale, Apr 15 2018 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Jorge Coveiro, Apr 13 2004
EXTENSIONS
Corrected and extended by Pab Ter (pabrlos(AT)yahoo.com), May 24 2004
Changed from a(3) on by R. J. Mathar, Sep 08 2008
STATUS
approved