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.

A290220 Narrow cross sequence (see Comments lines for definition).

Table of values

n a(n)
0 0
1 2
2 6
3 10
4 18
5 26
6 34
7 42
8 58
9 70
10 78
11 94
12 106
13 114
14 130
15 142
16 150
17 166
18 178
19 186
20 202
21 214
22 222
23 238
24 250
25 258
26 274
27 286
28 294
29 310
30 322
31 330
32 346
33 358
34 366
35 382
36 394
37 402
38 418
39 430
40 438
41 454
42 466
43 474
44 490
45 502
46 510
47 526
48 538
49 546
50 562
51 574
52 582
53 598
54 610
55 618
56 634
57 646
58 654
59 670
60 682
61 690
62 706
63 718
64 726
65 742
66 754

List of values

[0, 2, 6, 10, 18, 26, 34, 42, 58, 70, 78, 94, 106, 114, 130, 142, 150, 166, 178, 186, 202, 214, 222, 238, 250, 258, 274, 286, 294, 310, 322, 330, 346, 358, 366, 382, 394, 402, 418, 430, 438, 454, 466, 474, 490, 502, 510, 526, 538, 546, 562, 574, 582, 598, 610, 618, 634, 646, 654, 670, 682, 690, 706, 718, 726, 742, 754]