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.

A091425 Write the natural numbers in a triangle with k digits in the k-th row, as shown below. Sequence gives the leading diagonal.

Table of values

n a(n)
1 1
2 3
3 6
4 1
5 2
6 5
7 1
8 2
9 7
10 2
11 3
12 4
13 0
14 7
15 6
16 7
17 1
18 0
19 1
20 6
21 3
22 1
23 8
24 6
25 1
26 3
27 2
28 1
29 1
30 1
31 2
32 2
33 3
34 2
35 6
36 8
37 2
38 3
39 6
40 3
41 3
42 7
43 3
44 6
45 1
46 3
47 2
48 8
49 4
50 1
51 8
52 4
53 3
54 1
55 5
56 8
57 7
58 6
59 6
60 6
61 6
62 7
63 8
64 7
65 1
66 3
67 7
68 8
69 1
70 8
71 8
72 2
73 9
74 1
75 6
76 1
77 0
78 7
79 6
80 8
81 7
82 1
83 1
84 1
85 1
86 2
87 3
88 5
89 8
90 3
91 1
92 1
93 3
94 3
95 1
96 4
97 5
98 4
99 1
100 1
101 5
102 0
103 1
104 4
105 8

List of values

[1, 3, 6, 1, 2, 5, 1, 2, 7, 2, 3, 4, 0, 7, 6, 7, 1, 0, 1, 6, 3, 1, 8, 6, 1, 3, 2, 1, 1, 1, 2, 2, 3, 2, 6, 8, 2, 3, 6, 3, 3, 7, 3, 6, 1, 3, 2, 8, 4, 1, 8, 4, 3, 1, 5, 8, 7, 6, 6, 6, 6, 7, 8, 7, 1, 3, 7, 8, 1, 8, 8, 2, 9, 1, 6, 1, 0, 7, 6, 8, 7, 1, 1, 1, 1, 2, 3, 5, 8, 3, 1, 1, 3, 3, 1, 4, 5, 4, 1, 1, 5, 0, 1, 4, 8]