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!)

A161313 as a simple table

n a(n)
1 0
2 0
3 0
4 0
5 0
6 0
7 0
8 1
9 1
10 1
11 1
12 1
13 1
14 1
15 1
16 2
17 1
18 2
19 1
20 2
21 1
22 2
23 1
24 4
25 2
26 4
27 4
28 5
29 4
30 7
31 5
32 8
33 8
34 9
35 9
36 12
37 10
38 13
39 13
40 15
41 14
42 18
43 16
44 19
45 19
46 21
47 20
48 25
49 23
50 27
51 28
52 31
53 31
54 37
55 36
56 42
57 43
58 47
59 48
60 55
61 55
62 61
63 65
64 70
65 72
66 80
67 81
68 88
69 92
70 99
71 102
72 112
73 113
74 122
75 126
76 134
77 138
78 149
79 152
80 163
81 168
82 177

[0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,2,1,2,1,2,1,2,1,4,
 2,4,4,5,4,7,5,8,8,9,9,12,10,13,13,15,14,18,16,19,
 19,21,20,25,23,27,28,31,31,37,36,42,43,47,48,55,
 55,61,65,70,72,80,81,88,92,99,102,112,113,122,126,
 134,138,149,152,163,168,177]

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 4 19:40 EST 2021. Contains 349526 sequences. (Running on oeis4.)