OFFSET
0,2
COMMENTS
From Robert Israel, Dec 27 2016: (Start)
7*n <= a(n) < 8*n.
a(n) = 7*n if and only if n is in A048715.
It appears that a(n) = 8*n-1 if and only if n = (4*8^j+2*8^k+3)/7 for some j and k. (End)
LINKS
Robert Israel, Table of n, a(n) for n = 0..10000
MAPLE
seq(Bits:-Or(n, 7*n), n=0..100); # Robert Israel, Dec 27 2016
MATHEMATICA
f[n_] := BitOr[n, 7n]; Array[f, 55, 0] (* Robert G. Wilson v, Jun 28 2010 *)
CROSSREFS
KEYWORD
nonn,look
AUTHOR
Dmitry Kamenetsky, Jun 21 2010
EXTENSIONS
More terms from Robert G. Wilson v, Jun 28 2010
STATUS
approved