login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 59th year, we have over 358,000 sequences, and we’ve crossed 10,300 citations (which often say “discovered thanks to the OEIS”).

Other ways to Give
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)

A189546 as a simple table

n a(n)
1 4
2 8
3 28
4 72
5 152
6 264
7 432
8 660
9 968
10 1352
11 1832
12 2400
13 3084
14 3880
15 4808
16 5876
17 7100
18 8472
19 10020
20 11736
21 13648
22 15748
23 18064
24 20576
25 23328
26 26304
27 29536
28 33012
29 36764
30 40768
31 45068
32 49656
33 54556
34 59756
35 65292
36 71148
37 77360
38 83908
39 90828
40 98100

[4,8,28,72,152,264,432,660,968,1352,1832,2400,
 3084,3880,4808,5876,7100,8472,10020,11736,13648,
 15748,18064,20576,23328,26304,29536,33012,36764,
 40768,45068,49656,54556,59756,65292,71148,77360,
 83908,90828,98100]

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified December 6 21:00 EST 2022. Contains 358648 sequences. (Running on oeis4.)