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.

A383821 3-automorphic numbers: positive integers k such that 3k^2 ends with k.

Table of values

n a(n)
1 2
2 5
3 7
4 67
5 75
6 92
7 667
8 792
9 875
10 6667
11 6875
12 9792
13 66667
14 69792
15 96875
16 296875
17 369792
18 666667
19 2369792
20 4296875
21 6666667
22 62369792
23 66666667
24 262369792
25 404296875
26 666666667
27 6666666667
28 7262369792
29 9404296875
30 27262369792
31 39404296875
32 66666666667
33 639404296875

List of values

[2, 5, 7, 67, 75, 92, 667, 792, 875, 6667, 6875, 9792, 66667, 69792, 96875, 296875, 369792, 666667, 2369792, 4296875, 6666667, 62369792, 66666667, 262369792, 404296875, 666666667, 6666666667, 7262369792, 9404296875, 27262369792, 39404296875, 66666666667, 639404296875]

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

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