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.

A337657 Let M_k denote the addition table for the first k terms of A337656. M_k contains exactly k*(k+1)/2 distinct numbers, and these numbers are a subset of the entries in M_{k+1}. The present sequence consists of the numbers that never appear in any M_k.

Table of values

n a(n)
1 5
2 9
3 11
4 16
5 17
6 18
7 22
8 25
9 26
10 28
11 29
12 34
13 35
14 36
15 38
16 39
17 41
18 43
19 46
20 48
21 49
22 52
23 53
24 54
25 55
26 57
27 58
28 59
29 61
30 62
31 63
32 67
33 69
34 70
35 71
36 73
37 75
38 76
39 78
40 79
41 80
42 81
43 82
44 83
45 84
46 86
47 87
48 89
49 90
50 93
51 96
52 97
53 99
54 100
55 101
56 102
57 104
58 105
59 106
60 112
61 113
62 115
63 116
64 117
65 118
66 120
67 124
68 126
69 128

List of values

[5, 9, 11, 16, 17, 18, 22, 25, 26, 28, 29, 34, 35, 36, 38, 39, 41, 43, 46, 48, 49, 52, 53, 54, 55, 57, 58, 59, 61, 62, 63, 67, 69, 70, 71, 73, 75, 76, 78, 79, 80, 81, 82, 83, 84, 86, 87, 89, 90, 93, 96, 97, 99, 100, 101, 102, 104, 105, 106, 112, 113, 115, 116, 117, 118, 120, 124, 126, 128]