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 60th year, we have over 367,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

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

A139805 as a simple table

n a(n)
1 20
2 28
3 36
4 42
5 44
6 48
7 52
8 54
9 60
10 66
11 68
12 72
13 76
14 78
15 80
16 84
17 88
18 90
19 92
20 96
21 99
22 100
23 102
24 104
25 108
26 110
27 112
28 114
29 116
30 117
31 120
32 124
33 126
34 130
35 132
36 136
37 138
38 140
39 144
40 148
41 150
42 152
43 153
44 156
45 160
46 162
47 164
48 168
49 170
50 171
51 172
52 174
53 176
54 180
55 184
56 186
57 188

[20,28,36,42,44,48,52,54,60,66,68,72,76,78,80,84,
 88,90,92,96,99,100,102,104,108,110,112,114,116,
 117,120,124,126,130,132,136,138,140,144,148,150,
 152,153,156,160,162,164,168,170,171,172,174,176,
 180,184,186,188]

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 3 15:26 EST 2023. Contains 367540 sequences. (Running on oeis4.)