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.

A205548 Symmetric matrix by antidiagonals: C(max(i+1,j+1),min(i+1,j+1)), i>=1, j>=1.

Table of values

n a(n)
1 1
2 3
3 3
4 6
5 1
6 6
7 10
8 4
9 4
10 10
11 15
12 10
13 1
14 10
15 15
16 21
17 20
18 5
19 5
20 20
21 21
22 28
23 35
24 15
25 1
26 15
27 35
28 28
29 36
30 56
31 35
32 6
33 6
34 35
35 56
36 36
37 45
38 84
39 70
40 21
41 1
42 21
43 70
44 84
45 45
46 55
47 120
48 126
49 56
50 7
51 7
52 56
53 126
54 120
55 55
56 66
57 165
58 210
59 126
60 28
61 1
62 28
63 126
64 210
65 165
66 66
67 78
68 220

List of values

[1, 3, 3, 6, 1, 6, 10, 4, 4, 10, 15, 10, 1, 10, 15, 21, 20, 5, 5, 20, 21, 28, 35, 15, 1, 15, 35, 28, 36, 56, 35, 6, 6, 35, 56, 36, 45, 84, 70, 21, 1, 21, 70, 84, 45, 55, 120, 126, 56, 7, 7, 56, 126, 120, 55, 66, 165, 210, 126, 28, 1, 28, 126, 210, 165, 66, 78, 220]

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

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