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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.

A333011 Integers which can be written in only one way as a sum of two distinct nonzero pentagonal numbers.

Table of values

n a(n)
1 6
2 13
3 17
4 23
5 27
6 34
7 36
8 40
9 47
10 52
11 56
12 57
13 63
14 71
15 73
16 75
17 82
18 86
19 92
20 93
21 97
22 104
23 105
24 114
25 118
26 121
27 122
28 127
29 129
30 139
31 143
32 146
33 150
34 152
35 157
36 162
37 167
38 168
39 177
40 180
41 181
42 187
43 188
44 196
45 198
46 209
47 222
48 227
49 232
50 237
51 245
52 246
53 248
54 252
55 259
56 261
57 262

List of values

[6, 13, 17, 23, 27, 34, 36, 40, 47, 52, 56, 57, 63, 71, 73, 75, 82, 86, 92, 93, 97, 104, 105, 114, 118, 121, 122, 127, 129, 139, 143, 146, 150, 152, 157, 162, 167, 168, 177, 180, 181, 187, 188, 196, 198, 209, 222, 227, 232, 237, 245, 246, 248, 252, 259, 261, 262]

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

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