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.

A251599 Centers of rows of the triangular array formed by the natural numbers.

Table of values

n a(n)
1 1
2 2
3 3
4 5
5 8
6 9
7 13
8 18
9 19
10 25
11 32
12 33
13 41
14 50
15 51
16 61
17 72
18 73
19 85
20 98
21 99
22 113
23 128
24 129
25 145
26 162
27 163
28 181
29 200
30 201
31 221
32 242
33 243
34 265
35 288
36 289
37 313
38 338
39 339
40 365
41 392
42 393
43 421
44 450
45 451
46 481
47 512
48 513
49 545
50 578
51 579
52 613
53 648
54 649
55 685
56 722
57 723

List of values

[1, 2, 3, 5, 8, 9, 13, 18, 19, 25, 32, 33, 41, 50, 51, 61, 72, 73, 85, 98, 99, 113, 128, 129, 145, 162, 163, 181, 200, 201, 221, 242, 243, 265, 288, 289, 313, 338, 339, 365, 392, 393, 421, 450, 451, 481, 512, 513, 545, 578, 579, 613, 648, 649, 685, 722, 723]