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.

A257513 Square array A(row,col) = A083221(row+1,col) - A083221(row,col): the first differences of each column of array constructed from the sieve of Eratosthenes.

Table of values

n a(n)
1 1
2 5
3 2
4 9
5 16
6 2
7 13
8 20
9 24
10 4
11 17
12 34
13 42
14 72
15 2
16 21
17 38
18 36
19 66
20 48
21 4
22 25
23 52
24 54
25 96
26 78
27 120
28 2
29 29
30 56
31 48
32 90
33 60
34 102
35 72
36 4
37 33
38 70
39 66
40 120
41 90
42 144
43 114
44 168
45 6
46 37
47 74
48 88
49 158
50 124
51 194
52 160
53 230
54 312
55 2
56 41
57 88
58 92
59 138
60 84
61 150
62 96
63 162
64 232
65 120
66 6
67 45
68 92
69 114
70 190
71 140
72 226
73 176
74 262
75 360
76 248
77 408
78 4

List of values

[1, 5, 2, 9, 16, 2, 13, 20, 24, 4, 17, 34, 42, 72, 2, 21, 38, 36, 66, 48, 4, 25, 52, 54, 96, 78, 120, 2, 29, 56, 48, 90, 60, 102, 72, 4, 33, 70, 66, 120, 90, 144, 114, 168, 6, 37, 74, 88, 158, 124, 194, 160, 230, 312, 2, 41, 88, 92, 138, 84, 150, 96, 162, 232, 120, 6, 45, 92, 114, 190, 140, 226, 176, 262, 360, 248, 408, 4]