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.

A136561 Triangle read by rows: n-th diagonal (from the right) is the sequence of (signed) differences between pairs of consecutive terms in the (n-1)th diagonal. The rightmost diagonal (A136562) is defined: A136562(1)=1; A136562(n) is the smallest integer > A136562(n-1) such that any (signed) integer occurs at most once in the triangle A136561.

Table of values

n a(n)
1 1
2 2
3 3
4 4
5 6
6 9
7 -5
8 -1
9 5
10 14
11 13
12 8
13 7
14 12
15 26
16 -30
17 -17
18 -9
19 -2
20 10
21 36
22 75
23 45
24 28
25 19
26 17
27 27
28 63
29 -200
30 -125
31 -80
32 -52
33 -33
34 -16
35 11
36 74
37 524
38 324
39 199
40 119
41 67
42 34
43 18
44 29
45 103
46 -1299
47 -775
48 -451
49 -252
50 -133
51 -66
52 -32
53 -14
54 15
55 118

List of values

[1, 2, 3, 4, 6, 9, -5, -1, 5, 14, 13, 8, 7, 12, 26, -30, -17, -9, -2, 10, 36, 75, 45, 28, 19, 17, 27, 63, -200, -125, -80, -52, -33, -16, 11, 74, 524, 324, 199, 119, 67, 34, 18, 29, 103, -1299, -775, -451, -252, -133, -66, -32, -14, 15, 118]