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.

A281592 Products of three distinct primes p1, p2 and p3 (sphenic numbers) with p1 and p3 is the concatenation of p1 with p2.

Table of values

n a(n)
1 138
2 777
3 4642
4 10258
5 10263
6 12207
7 13282
8 16167
9 19762
10 30783
11 37407
12 38482
13 46978
14 48927
15 56127
16 60145
17 63543
18 73767
19 81687
20 89823
21 95367
22 95627
23 103863
24 110905
25 115527
26 128545
27 202705
28 208879
29 223643
30 284119
31 324947
32 325793
33 360151
34 395003
35 477538
36 541163
37 558322
38 585538
39 672199
40 673693
41 780082
42 914551
43 1016643

List of values

[138, 777, 4642, 10258, 10263, 12207, 13282, 16167, 19762, 30783, 37407, 38482, 46978, 48927, 56127, 60145, 63543, 73767, 81687, 89823, 95367, 95627, 103863, 110905, 115527, 128545, 202705, 208879, 223643, 284119, 324947, 325793, 360151, 395003, 477538, 541163, 558322, 585538, 672199, 673693, 780082, 914551, 1016643]

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

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