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.

A131413 Triangle read by rows: A002024 + A128076 - A000012 as infinite lower triangular matrices.

Table of values

n a(n)
0 1
1 4
2 3
3 7
4 6
5 5
6 10
7 9
8 8
9 7
10 13
11 12
12 11
13 10
14 9
15 16
16 15
17 14
18 13
19 12
20 11
21 19
22 18
23 17
24 16
25 15
26 14
27 13
28 22
29 21
30 20
31 19
32 18
33 17
34 16
35 15
36 25
37 24
38 23
39 22
40 21
41 20
42 19
43 18
44 17
45 28
46 27
47 26
48 25
49 24
50 23
51 22
52 21
53 20
54 19
55 31
56 30
57 29
58 28
59 27
60 26
61 25
62 24
63 23
64 22
65 21
66 34
67 33
68 32
69 31
70 30
71 29
72 28
73 27
74 26
75 25
76 24
77 23

List of values

[1, 4, 3, 7, 6, 5, 10, 9, 8, 7, 13, 12, 11, 10, 9, 16, 15, 14, 13, 12, 11, 19, 18, 17, 16, 15, 14, 13, 22, 21, 20, 19, 18, 17, 16, 15, 25, 24, 23, 22, 21, 20, 19, 18, 17, 28, 27, 26, 25, 24, 23, 22, 21, 20, 19, 31, 30, 29, 28, 27, 26, 25, 24, 23, 22, 21, 34, 33, 32, 31, 30, 29, 28, 27, 26, 25, 24, 23]

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

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