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.

A376182 Triangle T read by rows: T(n, k) = (2*n^2 + 4*n + 1 - (-1)^n) / 4 - (1 + (-1)^k) * (n - k) - k.

Table of values

n a(n)
1 1
2 3
3 2
4 7
5 4
6 5
7 11
8 6
9 9
10 8
11 17
12 10
13 15
14 12
15 13
16 23
17 14
18 21
19 16
20 19
21 18
22 31
23 20
24 29
25 22
26 27
27 24
28 25
29 39
30 26
31 37
32 28
33 35
34 30
35 33
36 32
37 49
38 34
39 47
40 36
41 45
42 38
43 43
44 40
45 41
46 59
47 42
48 57
49 44
50 55
51 46
52 53
53 48
54 51
55 50
56 71
57 52
58 69
59 54
60 67
61 56
62 65
63 58
64 63
65 60
66 61
67 83
68 62
69 81
70 64
71 79
72 66
73 77
74 68
75 75
76 70
77 73
78 72

List of values

[1, 3, 2, 7, 4, 5, 11, 6, 9, 8, 17, 10, 15, 12, 13, 23, 14, 21, 16, 19, 18, 31, 20, 29, 22, 27, 24, 25, 39, 26, 37, 28, 35, 30, 33, 32, 49, 34, 47, 36, 45, 38, 43, 40, 41, 59, 42, 57, 44, 55, 46, 53, 48, 51, 50, 71, 52, 69, 54, 67, 56, 65, 58, 63, 60, 61, 83, 62, 81, 64, 79, 66, 77, 68, 75, 70, 73, 72]