cp's OEIS Frontend

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.

A277101 Sum over all partitions of n of the number of distinct parts i of multiplicity i - 1.

Table of values

n a(n)
0 0
1 0
2 1
3 1
4 1
5 2
6 4
7 5
8 8
9 10
10 15
11 20
12 29
13 37
14 52
15 67
16 89
17 115
18 152
19 192
20 251
21 316
22 405
23 508
24 644
25 799
26 1006
27 1243
28 1546
29 1901
30 2351
31 2871
32 3527
33 4289
34 5232
35 6336
36 7688
37 9264
38 11189
39 13430
40 16137
41 19299
42 23097
43 27514
44 32799
45 38944
46 46246
47 54738
48 64782
49 76430
50 90171

List of values

[0, 0, 1, 1, 1, 2, 4, 5, 8, 10, 15, 20, 29, 37, 52, 67, 89, 115, 152, 192, 251, 316, 405, 508, 644, 799, 1006, 1243, 1546, 1901, 2351, 2871, 3527, 4289, 5232, 6336, 7688, 9264, 11189, 13430, 16137, 19299, 23097, 27514, 32799, 38944, 46246, 54738, 64782, 76430, 90171]