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.

A116130 Numbers k such that k concatenated with k-4 gives the product of two numbers which differ by 5.

Table of values

n a(n)
1 8
2 98
3 590
4 738
5 830
6 998
7 1080
8 4508
9 9998
10 20660
11 29754
12 99998
13 980300
14 999998
15 6694218
16 9999998
17 49826988
18 99999998
19 117738578
20 131505858
21 132231404
22 176445054
23 177285320
24 247979808
25 252028388
26 335180054
27 336337790

List of values

[8, 98, 590, 738, 830, 998, 1080, 4508, 9998, 20660, 29754, 99998, 980300, 999998, 6694218, 9999998, 49826988, 99999998, 117738578, 131505858, 132231404, 176445054, 177285320, 247979808, 252028388, 335180054, 336337790]