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.

A116315 Numbers k such that k*(k+2) gives the concatenation of two numbers m and m+4.

Table of values

n a(n)
1 3
2 6
3 44
4 55
5 38162
6 61837
7 83617
8 346979
9 653020
10 950050
11 8647554
12 9534264
13 8167822282
14 9007920991
15 9209900791
16 9950000500
17 4737445289220
18 4990568257186
19 5009431742813
20 5262554710779
21 8373808925584

List of values

[3, 6, 44, 55, 38162, 61837, 83617, 346979, 653020, 950050, 8647554, 9534264, 8167822282, 9007920991, 9209900791, 9950000500, 4737445289220, 4990568257186, 5009431742813, 5262554710779, 8373808925584]

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

Content is available under The OEIS End-User License Agreement.