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.

A211394 T(n,k) = (k+n)*(k+n-1)/2-(k+n-1)*(-1)^(k+n)-k+2; n , k > 0, read by antidiagonals.

Table of values

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

List of values

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