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A009490 as a simple table

n a(n)
0 1
1 1
2 2
3 3
4 4
5 6
6 6
7 9
8 11
9 14
10 16
11 20
12 23
13 27
14 31
15 35
16 43
17 47
18 55
19 61
20 70
21 78
22 88
23 98
24 111
25 123
26 136
27 152
28 168
29 187
30 204
31 225
32 248
33 271
34 296
35 325
36 356
37 387
38 418
39 455
40 495
41 537
42 581
43 629
44 678
45 732
46 787
47 851
48 918
49 986
50 1056
51 1133
52 1217
53 1307
54 1399
55 1498
56 1600
57 1708
58 1823

[1,1,2,3,4,6,6,9,11,14,16,20,23,27,31,35,43,47,55,
 61,70,78,88,98,111,123,136,152,168,187,204,225,
 248,271,296,325,356,387,418,455,495,537,581,629,
 678,732,787,851,918,986,1056,1133,1217,1307,1399,
 1498,1600,1708,1823]

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Last modified April 25 01:35 EDT 2024. Contains 371964 sequences. (Running on oeis4.)