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.

A239659 Sum of first n parts of the spiral described in A239660.

Table of values

n a(n)
1 1
2 4
3 6
4 8
5 15
6 18
7 21
8 33
9 37
10 41
11 56
12 61
13 64
14 69
15 78
16 87
17 93
18 99
19 127
20 134
21 141
22 153
23 165
24 173
25 181
26 189
27 220
28 229
29 238
30 277
31 287
32 297
33 339
34 350
35 355
36 360
37 371
38 389
39 407
40 419
41 431
42 491
43 504
44 509
45 522
46 543
47 564
48 578
49 584
50 590
51 604
52 660
53 675
54 690
55 762
56 778
57 794
58 857
59 874
60 881
61 888
62 905
63 932
64 959
65 977
66 989
67 1007
68 1098

List of values

[1, 4, 6, 8, 15, 18, 21, 33, 37, 41, 56, 61, 64, 69, 78, 87, 93, 99, 127, 134, 141, 153, 165, 173, 181, 189, 220, 229, 238, 277, 287, 297, 339, 350, 355, 360, 371, 389, 407, 419, 431, 491, 504, 509, 522, 543, 564, 578, 584, 590, 604, 660, 675, 690, 762, 778, 794, 857, 874, 881, 888, 905, 932, 959, 977, 989, 1007, 1098]