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!)

A081112 as a simple table

n a(n)
1 1
2 1
3 1
4 1
5 1
6 1
7 1
8 7
9 7
10 5
11 12
12 20
13 11
14 54
15 10
16 15
17 20
18 19
19 43
20 30
21 18
22 5
23 55
24 25
25 63
26 28
27 21
28 29
29 15
30 22
31 5
32 85
33 18
34 34
35 41
36 81
37 16
38 14
39 13
40 15
41 32
42 49
43 22
44 5
45 165
46 10
47 25
48 9
49 84
50 99
51 18
52 129
53 10
54 41
55 146
56 35
57 9
58 39
59 50
60 40
61 16
62 59
63 63
64 65
65 19
66 258
67 136
68 115
69 11
70 15
71 169
72 26

[1,1,1,1,1,1,1,7,7,5,12,20,11,54,10,15,20,19,43,
 30,18,5,55,25,63,28,21,29,15,22,5,85,18,34,41,81,
 16,14,13,15,32,49,22,5,165,10,25,9,84,99,18,129,
 10,41,146,35,9,39,50,40,16,59,63,65,19,258,136,
 115,11,15,169,26]

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 06:30 EST 2021. Contains 349532 sequences. (Running on oeis4.)