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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.

A078392 Sum of GCD's of parts in all partitions of n.

Table of values

n a(n)
1 1
2 3
3 5
4 9
5 11
6 20
7 21
8 35
9 42
10 61
11 66
12 112
13 113
14 168
15 210
16 279
17 313
18 461
19 508
20 719
21 852
22 1088
23 1277
24 1756
25 2006
26 2573
27 3106
28 3937
29 4593
30 5958
31 6872
32 8676
33 10305
34 12655
35 15009
36 18664
37 21673
38 26559
39 31447
40 38217
41 44623
42 54386
43 63303
44 76379
45 89696
46 106879

List of values

[1, 3, 5, 9, 11, 20, 21, 35, 42, 61, 66, 112, 113, 168, 210, 279, 313, 461, 508, 719, 852, 1088, 1277, 1756, 2006, 2573, 3106, 3937, 4593, 5958, 6872, 8676, 10305, 12655, 15009, 18664, 21673, 26559, 31447, 38217, 44623, 54386, 63303, 76379, 89696, 106879]

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

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