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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.

A228440 Numbers n dividing u(n), where the Lucas sequence is defined u(i) = u(i-1) - 3*u(i-2) with initial conditions u(0)=0, u(1)=1.

Table of values

n a(n)
1 1
2 11
3 121
4 253
5 1331
6 2783
7 5819
8 11891
9 14641
10 29161
11 30613
12 64009
13 130801
14 133837
15 161051
16 273493
17 320771
18 336743
19 558877
20 640343
21 670703
22 704099
23 895873
24 1438811
25 1472207
26 1771561
27 3008423
28 3078251
29 3528481
30 3544453
31 3704173
32 6147647
33 6290339
34 7027801

List of values

[1, 11, 121, 253, 1331, 2783, 5819, 11891, 14641, 29161, 30613, 64009, 130801, 133837, 161051, 273493, 320771, 336743, 558877, 640343, 670703, 704099, 895873, 1438811, 1472207, 1771561, 3008423, 3078251, 3528481, 3544453, 3704173, 6147647, 6290339, 7027801]

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

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