login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons 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 56th year, we are closing in on 350,000 sequences, and we’ve crossed 9,700 citations (which often say “discovered thanks to the OEIS”).

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

A045858 as a simple table

n a(n)
1 2
2 7
3 20
4 21
5 22
6 64
7 65
8 66
9 67
10 68
11 69
12 70
13 200
14 201
15 202
16 203
17 204
18 205
19 206
20 207
21 208
22 209
23 210
24 211
25 212
26 213
27 214
28 215
29 216
30 217
31 218
32 219
33 220
34 221
35 222
36 223
37 633
38 634
39 635
40 636
41 637
42 638
43 639
44 640
45 641
46 642
47 643
48 644
49 645
50 646
51 647
52 648
53 649
54 650
55 651

[2,7,20,21,22,64,65,66,67,68,69,70,200,201,202,
 203,204,205,206,207,208,209,210,211,212,213,214,
 215,216,217,218,219,220,221,222,223,633,634,635,
 636,637,638,639,640,641,642,643,644,645,646,647,
 648,649,650,651]

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 6 19:17 EST 2021. Contains 349567 sequences. (Running on oeis4.)