login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

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

A161257 as a simple table

n a(n)
1 0
2 0
3 0
4 1
5 1
6 1
7 1
8 2
9 1
10 2
11 1
12 3
13 2
14 4
15 3
16 6
17 4
18 6
19 5
20 9
21 7
22 9
23 8
24 13
25 10
26 13
27 11
28 19
29 14
30 19
31 16
32 26
33 21
34 28
35 25
36 36
37 29
38 39
39 34
40 49
41 41
42 55
43 48
44 66
45 56
46 71
47 65
48 86
49 78
50 94
51 87
52 111
53 99
54 121
55 113
56 143
57 128
58 155
59 146
60 180
61 165
62 196
63 189
64 226
65 211
66 246
67 237
68 281
69 267
70 310
71 300
72 351
73 334

[0,0,0,1,1,1,1,2,1,2,1,3,2,4,3,6,4,6,5,9,7,9,8,13,
 10,13,11,19,14,19,16,26,21,28,25,36,29,39,34,49,
 41,55,48,66,56,71,65,86,78,94,87,111,99,121,113,
 143,128,155,146,180,165,196,189,226,211,246,237,
 281,267,310,300,351,334]

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 March 28 08:22 EDT 2024. Contains 371236 sequences. (Running on oeis4.)