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A001156 as a simple table

n a(n)
0 1
1 1
2 1
3 1
4 2
5 2
6 2
7 2
8 3
9 4
10 4
11 4
12 5
13 6
14 6
15 6
16 8
17 9
18 10
19 10
20 12
21 13
22 14
23 14
24 16
25 19
26 20
27 21
28 23
29 26
30 27
31 28
32 31
33 34
34 37
35 38
36 43
37 46
38 49
39 50
40 55
41 60
42 63
43 66
44 71
45 78
46 81
47 84
48 90
49 98
50 104
51 107
52 116
53 124
54 132
55 135
56 144
57 154
58 163
59 169
60 178
61 192
62 201
63 209
64 220
65 235
66 247
67 256

[1,1,1,1,2,2,2,2,3,4,4,4,5,6,6,6,8,9,10,10,12,13,
 14,14,16,19,20,21,23,26,27,28,31,34,37,38,43,46,
 49,50,55,60,63,66,71,78,81,84,90,98,104,107,116,
 124,132,135,144,154,163,169,178,192,201,209,220,
 235,247,256]

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Last modified November 30 04:37 EST 2022. Contains 358431 sequences. (Running on oeis4.)