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.

A355660 Numbers m such that the smallest number of pentagonal numbers (A000326) which sum to m is exactly 4.

Table of values

n a(n)
1 4
2 8
3 16
4 19
5 20
6 26
7 30
8 33
9 38
10 42
11 50
12 54
13 60
14 65
15 67
16 77
17 81
18 84
19 88
20 90
21 96
22 99
23 100
24 101
25 111
26 112
27 113
28 120
29 125
30 131
31 135
32 138
33 142
34 154
35 159
36 160
37 166
38 170
39 171
40 183
41 195
42 204
43 205
44 207
45 217
46 224
47 225
48 226
49 229
50 230
51 236
52 240
53 241
54 243
55 255
56 265
57 275
58 277
59 286
60 306
61 308
62 345

List of values

[4, 8, 16, 19, 20, 26, 30, 33, 38, 42, 50, 54, 60, 65, 67, 77, 81, 84, 88, 90, 96, 99, 100, 101, 111, 112, 113, 120, 125, 131, 135, 138, 142, 154, 159, 160, 166, 170, 171, 183, 195, 204, 205, 207, 217, 224, 225, 226, 229, 230, 236, 240, 241, 243, 255, 265, 275, 277, 286, 306, 308, 345]

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

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