login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A340301 a(n) = n * floor(log_2(n)). 4

%I

%S 0,2,3,8,10,12,14,24,27,30,33,36,39,42,45,64,68,72,76,80,84,88,92,96,

%T 100,104,108,112,116,120,124,160,165,170,175,180,185,190,195,200,205,

%U 210,215,220,225,230,235,240,245,250,255,260,265,270,275,280,285,290

%N a(n) = n * floor(log_2(n)).

%H Alois P. Heinz, <a href="/A340301/b340301.txt">Table of n, a(n) for n = 1..10000</a>

%F a(n) = n * A000523(n).

%F a(n) = A326299(n) - A336018(n).

%p a:= n-> n*ilog2(n):

%p seq(a(n), n=1..60);

%Y Cf. A000523, A061717, A326299, A336018.

%K nonn

%O 1,2

%A _Alois P. Heinz_, Jan 03 2021

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified June 20 15:30 EDT 2021. Contains 345165 sequences. (Running on oeis4.)