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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A173513 a(n) = ceiling(A173510(n)/2).

Table of values

n a(n)
0 1
1 1
2 2
3 2
4 3
5 3
6 4
7 5
8 7
9 9
10 11
11 14
12 18
13 23
14 30
15 38
16 49
17 63
18 80
19 103
20 132
21 169
22 216
23 277
24 355
25 454
26 582
27 745
28 954
29 1222
30 1565
31 2005
32 2568
33 3289
34 4212
35 5395
36 6910
37 8850
38 11335
39 14517
40 18593
41 23814
42 30500
43 39064
44 50032
45 64080
46 82072
47 105116
48 134630
49 172431
50 220846

List of values

[1, 1, 2, 2, 3, 3, 4, 5, 7, 9, 11, 14, 18, 23, 30, 38, 49, 63, 80, 103, 132, 169, 216, 277, 355, 454, 582, 745, 954, 1222, 1565, 2005, 2568, 3289, 4212, 5395, 6910, 8850, 11335, 14517, 18593, 23814, 30500, 39064, 50032, 64080, 82072, 105116, 134630, 172431, 220846]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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