Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 1 |
4 | 1 |
5 | 2 |
6 | 1 |
7 | 2 |
8 | 4 |
9 | 6 |
10 | 3 |
11 | 4 |
12 | 6 |
13 | 8 |
14 | 4 |
15 | 6 |
16 | 8 |
17 | 10 |
18 | 13 |
19 | 16 |
20 | 20 |
21 | 24 |
22 | 17 |
23 | 20 |
24 | 24 |
25 | 28 |
26 | 19 |
27 | 22 |
28 | 25 |
29 | 28 |
30 | 32 |
31 | 36 |
32 | 41 |
33 | 46 |
34 | 34 |
35 | 38 |
36 | 42 |
37 | 46 |
38 | 32 |
39 | 36 |
40 | 40 |
41 | 44 |
42 | 49 |
43 | 54 |
44 | 60 |
45 | 66 |
46 | 49 |
47 | 54 |
48 | 60 |
49 | 66 |
50 | 72 |
51 | 78 |
52 | 84 |
53 | 90 |
54 | 97 |
55 | 104 |
56 | 111 |
57 | 118 |
58 | 96 |
59 | 102 |
60 | 109 |
61 | 116 |
62 | 93 |
63 | 100 |
64 | 107 |
65 | 114 |
66 | 121 |
67 | 128 |
68 | 136 |
69 | 144 |
70 | 152 |
71 | 160 |
[0,0,1,1,2,1,2,4,6,3,4,6,8,4,6,8,10,13,16,20,24, 17,20,24,28,19,22,25,28,32,36,41,46,34,38,42,46, 32,36,40,44,49,54,60,66,49,54,60,66,72,78,84,90, 97,104,111,118,96,102,109,116,93,100,107,114,121, 128,136,144,152,160] |