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.

A359805 Irregular triangle T(n, k), n > 0, k = 1..A056137(A009023(n)), read by rows: the n-th row contains the numbers m < A009023(n) such that A009023(n)^2 + m^2 is a square.

Table of values

n a(n)
1 3
2 6
3 5
4 9
5 8
6 12
7 15
8 20
9 7
10 10
11 18
12 21
13 16
14 24
15 12
16 15
17 27
18 9
19 30
20 40
21 33
22 24
23 28
24 14
25 20
26 36
27 39
28 48
29 33
30 42
31 11
32 25
33 32
34 45
35 16
36 60
37 48
38 51
39 24
40 21
41 30
42 54
43 65
44 40
45 57
46 36
47 18
48 39
49 60
50 13
51 35
52 63
53 80
54 66
55 48
56 56
57 60
58 69
59 28
60 40
61 72
62 20
63 75
64 78
65 36
66 56
67 88
68 100

List of values

[3, 6, 5, 9, 8, 12, 15, 20, 7, 10, 18, 21, 16, 24, 12, 15, 27, 9, 30, 40, 33, 24, 28, 14, 20, 36, 39, 48, 33, 42, 11, 25, 32, 45, 16, 60, 48, 51, 24, 21, 30, 54, 65, 40, 57, 36, 18, 39, 60, 13, 35, 63, 80, 66, 48, 56, 60, 69, 28, 40, 72, 20, 75, 78, 36, 56, 88, 100]

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

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