login
This site is supported by donations to The OEIS Foundation.

 

Logo

Please make a donation to keep the OEIS running. We are now in our 55th year. In the past year we added 12000 new sequences and reached 8000 citations (which often say "discovered thanks to the OEIS"). We need to raise money to hire someone to manage submissions, which would reduce the load on our editors and speed up editing.
Other ways to donate

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)

A221967 as a simple table

n a(n)
1 3
2 5
3 9
4 7
5 25
6 15
7 9
8 49
9 65
10 33
11 11
12 81
13 175
14 225
15 63
16 13
17 121
18 369
19 833
20 705
21 129
22 15
23 169
24 671
25 2241
26 3647
27 2305
28 255
29 17
30 225
31 1105
32 4961
33 12609
34 16513
35 7425
36 513
37 19
38 289
39 1695
40 9633
41 34111
42 73089
43 73983
44 24065
45 1023
46 21
47 361
48 2465
49 17025
50 78273
51 241153

[3,5,9,7,25,15,9,49,65,33,11,81,175,225,63,13,121,
 369,833,705,129,15,169,671,2241,3647,2305,255,17,
 225,1105,4961,12609,16513,7425,513,19,289,1695,
 9633,34111,73089,73983,24065,1023,21,361,2465,
 17025,78273,241153]

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 December 5 13:26 EST 2019. Contains 329751 sequences. (Running on oeis4.)