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.

A134519 Numbers remaining when the natural numbers (A000027) are arranged into a triangle and only the beginning and end terms of each row are retained.

Table of values

n a(n)
1 1
2 2
3 3
4 4
5 6
6 7
7 10
8 11
9 15
10 16
11 21
12 22
13 28
14 29
15 36
16 37
17 45
18 46
19 55
20 56
21 66
22 67
23 78
24 79
25 91
26 92
27 105
28 106
29 120
30 121
31 136
32 137
33 153
34 154
35 171
36 172
37 190
38 191
39 210
40 211
41 231
42 232
43 253
44 254
45 276
46 277
47 300
48 301
49 325
50 326
51 351
52 352
53 378
54 379
55 406
56 407
57 435
58 436
59 465
60 466

List of values

[1, 2, 3, 4, 6, 7, 10, 11, 15, 16, 21, 22, 28, 29, 36, 37, 45, 46, 55, 56, 66, 67, 78, 79, 91, 92, 105, 106, 120, 121, 136, 137, 153, 154, 171, 172, 190, 191, 210, 211, 231, 232, 253, 254, 276, 277, 300, 301, 325, 326, 351, 352, 378, 379, 406, 407, 435, 436, 465, 466]

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

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