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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.

A257064 Number of length 2 1..(n+1) arrays with every leading partial sum divisible by 2 or 3.

Table of values

n a(n)
1 2
2 4
3 7
4 9
5 16
6 18
7 27
8 35
9 45
10 49
11 64
12 68
13 84
14 98
15 115
16 121
17 144
18 150
19 173
20 193
21 217
22 225
23 256
24 264
25 294
26 320
27 351
28 361
29 400
30 410
31 447
32 479
33 517
34 529
35 576
36 588
37 632
38 670
39 715
40 729
41 784
42 798
43 849
44 893
45 945
46 961
47 1024
48 1040
49 1098
50 1148
51 1207
52 1225
53 1296
54 1314
55 1379

List of values

[2, 4, 7, 9, 16, 18, 27, 35, 45, 49, 64, 68, 84, 98, 115, 121, 144, 150, 173, 193, 217, 225, 256, 264, 294, 320, 351, 361, 400, 410, 447, 479, 517, 529, 576, 588, 632, 670, 715, 729, 784, 798, 849, 893, 945, 961, 1024, 1040, 1098, 1148, 1207, 1225, 1296, 1314, 1379]

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

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