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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.

A278101 Triangle T(n,k) = A277648(n,k)^2 * A005117(k), read by rows.

Table of values

n a(n)
1 1
2 4
3 2
4 3
5 9
6 8
7 3
8 5
9 6
10 7
11 16
12 8
13 12
14 5
15 6
16 7
17 10
18 11
19 13
20 14
21 15
22 25
23 18
24 12
25 20
26 24
27 7
28 10
29 11
30 13
31 14
32 15
33 17
34 19
35 21
36 22
37 23
38 36
39 32
40 27
41 20
42 24
43 28
44 10
45 11
46 13
47 14
48 15
49 17
50 19
51 21
52 22
53 23
54 26
55 29
56 30
57 31
58 33
59 34
60 35
61 49
62 32
63 48
64 45
65 24
66 28
67 40
68 44
69 13
70 14
71 15
72 17
73 19
74 21
75 22

List of values

[1, 4, 2, 3, 9, 8, 3, 5, 6, 7, 16, 8, 12, 5, 6, 7, 10, 11, 13, 14, 15, 25, 18, 12, 20, 24, 7, 10, 11, 13, 14, 15, 17, 19, 21, 22, 23, 36, 32, 27, 20, 24, 28, 10, 11, 13, 14, 15, 17, 19, 21, 22, 23, 26, 29, 30, 31, 33, 34, 35, 49, 32, 48, 45, 24, 28, 40, 44, 13, 14, 15, 17, 19, 21, 22]

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

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