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.

A027563 Numbers not of form abc + abd + acd + bcd for 1<=a<=b<=c<=d.

Table of values

n a(n)
1 1
2 2
3 3
4 5
5 6
6 8
7 9
8 11
9 14
10 15
11 18
12 21
13 23
14 26
15 29
16 30
17 33
18 35
19 41
20 48
21 51
22 53
23 63
24 65
25 74
26 75
27 86
28 89
29 90
30 98
31 111
32 113
33 119
34 125
35 131
36 141
37 155
38 158
39 173
40 179
41 191
42 209
43 210
44 233
45 239
46 251
47 254
48 273
49 285
50 293
51 321
52 323
53 326
54 338
55 341
56 345
57 363
58 419

List of values

[1, 2, 3, 5, 6, 8, 9, 11, 14, 15, 18, 21, 23, 26, 29, 30, 33, 35, 41, 48, 51, 53, 63, 65, 74, 75, 86, 89, 90, 98, 111, 113, 119, 125, 131, 141, 155, 158, 173, 179, 191, 209, 210, 233, 239, 251, 254, 273, 285, 293, 321, 323, 326, 338, 341, 345, 363, 419]