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.

A156859 The main column of a version of the square spiral.

Table of values

n a(n)
0 0
1 3
2 7
3 14
4 22
5 33
6 45
7 60
8 76
9 95
10 115
11 138
12 162
13 189
14 217
15 248
16 280
17 315
18 351
19 390
20 430
21 473
22 517
23 564
24 612
25 663
26 715
27 770
28 826
29 885
30 945
31 1008
32 1072
33 1139
34 1207
35 1278
36 1350
37 1425
38 1501
39 1580
40 1660
41 1743
42 1827
43 1914
44 2002
45 2093
46 2185
47 2280
48 2376
49 2475
50 2575

List of values

[0, 3, 7, 14, 22, 33, 45, 60, 76, 95, 115, 138, 162, 189, 217, 248, 280, 315, 351, 390, 430, 473, 517, 564, 612, 663, 715, 770, 826, 885, 945, 1008, 1072, 1139, 1207, 1278, 1350, 1425, 1501, 1580, 1660, 1743, 1827, 1914, 2002, 2093, 2185, 2280, 2376, 2475, 2575]

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

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