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.

A116317 Numbers k such that k*(k+4) gives the concatenation of two numbers m and m+4.

Table of values

n a(n)
1 7745
2 8019
3 33294316
4 66705681
5 98000199
6 340465755423
7 476452552743
8 523547447254
9 659534244574
10 866013200679
11 998000001999
12 3695104677080132
13 3755782995538766
14 4198081170077529
15 4803478892324964
16 5196521107675033

List of values

[7745, 8019, 33294316, 66705681, 98000199, 340465755423, 476452552743, 523547447254, 659534244574, 866013200679, 998000001999, 3695104677080132, 3755782995538766, 4198081170077529, 4803478892324964, 5196521107675033]