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.

A143856 Ulam's spiral (ENE spoke).

Table of values

n a(n)
1 1
2 12
3 55
4 130
5 237
6 376
7 547
8 750
9 985
10 1252
11 1551
12 1882
13 2245
14 2640
15 3067
16 3526
17 4017
18 4540
19 5095
20 5682
21 6301
22 6952
23 7635
24 8350
25 9097
26 9876
27 10687
28 11530
29 12405
30 13312
31 14251
32 15222
33 16225
34 17260
35 18327
36 19426
37 20557
38 21720
39 22915
40 24142

List of values

[1, 12, 55, 130, 237, 376, 547, 750, 985, 1252, 1551, 1882, 2245, 2640, 3067, 3526, 4017, 4540, 5095, 5682, 6301, 6952, 7635, 8350, 9097, 9876, 10687, 11530, 12405, 13312, 14251, 15222, 16225, 17260, 18327, 19426, 20557, 21720, 22915, 24142]