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.

A205549 Symmetric matrix by antidiagonals: C(max(i+2,j+2),min(i+2,j+2)), i>=1, j>=1.

Table of values

n a(n)
1 1
2 4
3 4
4 10
5 1
6 10
7 20
8 5
9 5
10 20
11 35
12 15
13 1
14 15
15 35
16 56
17 35
18 6
19 6
20 35
21 56
22 84
23 70
24 21
25 1
26 21
27 70
28 84
29 120
30 126
31 56
32 7
33 7
34 56
35 126
36 120
37 165
38 210
39 126
40 28
41 1
42 28
43 126
44 210
45 165
46 220
47 330
48 252
49 84
50 8
51 8
52 84
53 252
54 330
55 220
56 286
57 495
58 462
59 210
60 36
61 1
62 36
63 210
64 462

List of values

[1, 4, 4, 10, 1, 10, 20, 5, 5, 20, 35, 15, 1, 15, 35, 56, 35, 6, 6, 35, 56, 84, 70, 21, 1, 21, 70, 84, 120, 126, 56, 7, 7, 56, 126, 120, 165, 210, 126, 28, 1, 28, 126, 210, 165, 220, 330, 252, 84, 8, 8, 84, 252, 330, 220, 286, 495, 462, 210, 36, 1, 36, 210, 462]

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

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