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.

A364884 Triangle T(n, k), n > 0, k = 1..n, read by rows; T(1, 1) = 1, and for n > 1, k = 1..n, T(n, k) is the least unseen multiple of the k-th term of the flattened sequence .

Table of values

n a(n)
1 1
2 2
3 4
4 3
5 6
6 8
7 5
8 10
9 12
10 9
11 7
12 14
13 16
14 15
15 18
16 11
17 20
18 24
19 21
20 30
21 32
22 13
23 22
24 28
25 27
26 36
27 40
28 25
29 17
30 26
31 44
32 33
33 42
34 48
35 35
36 50
37 19
38 34
39 52
40 39
41 54
42 56
43 45
44 60
45 72
46 23
47 38
48 64
49 51
50 66
51 80
52 55
53 70
54 84
55 63
56 29
57 46
58 68
59 57
60 78
61 88
62 65
63 90
64 96
65 81
66 49

List of values

[1, 2, 4, 3, 6, 8, 5, 10, 12, 9, 7, 14, 16, 15, 18, 11, 20, 24, 21, 30, 32, 13, 22, 28, 27, 36, 40, 25, 17, 26, 44, 33, 42, 48, 35, 50, 19, 34, 52, 39, 54, 56, 45, 60, 72, 23, 38, 64, 51, 66, 80, 55, 70, 84, 63, 29, 46, 68, 57, 78, 88, 65, 90, 96, 81, 49]

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

Content is available under The OEIS End-User License Agreement.