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.

A116293 Numbers k such that k * (k+9) is the concatenation of a number m with itself.

Table of values

n a(n)
1 2
2 92
3 420
4 572
5 693
6 728
7 992
8 9855
9 9992
10 36355
11 63637
12 99992
13 970298
14 999992
15 4545455
16 5454537
17 9999992
18 88235295
19 99999992
20 351069983
21 403018035
22 493927126
23 506072866
24 596981957
25 648930009
26 736842097
27 739839100
28 766233767
29 769230761
30 827751188
31 857142858
32 860139852
33 879699240
34 909090910

List of values

[2, 92, 420, 572, 693, 728, 992, 9855, 9992, 36355, 63637, 99992, 970298, 999992, 4545455, 5454537, 9999992, 88235295, 99999992, 351069983, 403018035, 493927126, 506072866, 596981957, 648930009, 736842097, 739839100, 766233767, 769230761, 827751188, 857142858, 860139852, 879699240, 909090910]

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

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