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.

A229093 The clubs patterns appearing in n X n coins.

Table of values

n a(n)
0 0
1 0
2 1
3 2
4 4
5 6
6 9
7 12
8 17
9 22
10 27
11 34
12 41
13 48
14 57
15 66
16 75
17 86
18 97
19 108
20 121
21 134
22 147
23 162
24 177
25 192
26 209
27 226
28 243
29 262
30 281
31 300
32 321
33 342
34 363
35 386
36 409
37 432
38 457
39 482
40 507
41 534
42 561
43 588
44 617
45 646
46 675
47 706
48 737
49 768
50 801
51 834
52 867
53 902
54 937
55 972
56 1009
57 1046

List of values

[0, 0, 1, 2, 4, 6, 9, 12, 17, 22, 27, 34, 41, 48, 57, 66, 75, 86, 97, 108, 121, 134, 147, 162, 177, 192, 209, 226, 243, 262, 281, 300, 321, 342, 363, 386, 409, 432, 457, 482, 507, 534, 561, 588, 617, 646, 675, 706, 737, 768, 801, 834, 867, 902, 937, 972, 1009, 1046]

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

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