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.

A240075 Lexicographically earliest nonnegative increasing sequence such that no four terms have constant second differences.

Table of values

n a(n)
1 0
2 1
3 2
4 4
5 5
6 8
7 15
8 16
9 17
10 20
11 44
12 51
13 52
14 53
15 56
16 58
17 64
18 78
19 166
20 167
21 192
22 195
23 196
24 200
25 202
26 203
27 206
28 217
29 226
30 248
31 249
32 276
33 312
34 649
35 657
36 678
37 681
38 682
39 715
40 726
41 740
42 743
43 747
44 750
45 771
46 790
47 830
48 833
49 836
50 838
51 842
52 854
53 875
54 908
55 911
56 971

List of values

[0, 1, 2, 4, 5, 8, 15, 16, 17, 20, 44, 51, 52, 53, 56, 58, 64, 78, 166, 167, 192, 195, 196, 200, 202, 203, 206, 217, 226, 248, 249, 276, 312, 649, 657, 678, 681, 682, 715, 726, 740, 743, 747, 750, 771, 790, 830, 833, 836, 838, 842, 854, 875, 908, 911, 971]

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

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