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.

A210464 Number of bracelets with 2 blue, 2 red, and n black beads.

Table of values

n a(n)
1 4
2 11
3 18
4 33
5 48
6 74
7 100
8 140
9 180
10 237
11 294
12 371
13 448
14 548
15 648
16 774
17 900
18 1055
19 1210
20 1397
21 1584
22 1806
23 2028
24 2288
25 2548
26 2849
27 3150
28 3495
29 3840
30 4232
31 4624
32 5066
33 5508
34 6003
35 6498
36 7049
37 7600
38 8210
39 8820
40 9492
41 10164
42 10901
43 11638
44 12443
45 13248
46 14124

List of values

[4, 11, 18, 33, 48, 74, 100, 140, 180, 237, 294, 371, 448, 548, 648, 774, 900, 1055, 1210, 1397, 1584, 1806, 2028, 2288, 2548, 2849, 3150, 3495, 3840, 4232, 4624, 5066, 5508, 6003, 6498, 7049, 7600, 8210, 8820, 9492, 10164, 10901, 11638, 12443, 13248, 14124]

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

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