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.

A125666 Table read by ascending antidiagonals: n-th row of table consists of the positive integers divisible by exactly n distinct primes.

Table of values

n a(n)
1 2
2 6
3 3
4 30
5 10
6 4
7 210
8 42
9 12
10 5
11 2310
12 330
13 60
14 14
15 7
16 30030
17 2730
18 390
19 66
20 15
21 8
22 510510
23 39270
24 3570
25 420
26 70
27 18
28 9
29 9699690
30 570570
31 43890
32 3990
33 462
34 78
35 20
36 11
37 223092870
38 11741730
39 690690
40 46410
41 4290
42 510
43 84
44 21
45 13
46 6469693230
47 281291010

List of values

[2, 6, 3, 30, 10, 4, 210, 42, 12, 5, 2310, 330, 60, 14, 7, 30030, 2730, 390, 66, 15, 8, 510510, 39270, 3570, 420, 70, 18, 9, 9699690, 570570, 43890, 3990, 462, 78, 20, 11, 223092870, 11741730, 690690, 46410, 4290, 510, 84, 21, 13, 6469693230, 281291010]