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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.

A134816 Padovan's spiral numbers.

Table of values

n a(n)
1 1
2 1
3 1
4 2
5 2
6 3
7 4
8 5
9 7
10 9
11 12
12 16
13 21
14 28
15 37
16 49
17 65
18 86
19 114
20 151
21 200
22 265
23 351
24 465
25 616
26 816
27 1081
28 1432
29 1897
30 2513
31 3329
32 4410
33 5842
34 7739
35 10252
36 13581
37 17991
38 23833
39 31572
40 41824
41 55405
42 73396
43 97229
44 128801
45 170625
46 226030
47 299426
48 396655

List of values

[1, 1, 1, 2, 2, 3, 4, 5, 7, 9, 12, 16, 21, 28, 37, 49, 65, 86, 114, 151, 200, 265, 351, 465, 616, 816, 1081, 1432, 1897, 2513, 3329, 4410, 5842, 7739, 10252, 13581, 17991, 23833, 31572, 41824, 55405, 73396, 97229, 128801, 170625, 226030, 299426, 396655]

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

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