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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.

A121171 Largest prime divisor of Lucas(5*n), where Lucas(k) = A000032(k).

Table of values

n a(n)
1 11
2 41
3 31
4 2161
5 151
6 2521
7 911
8 3041
9 541
10 570601
11 39161
12 20641
13 24571
14 12317523121
15 18451
16 23725145626561
17 12760031
18 10783342081
19 87382901
20 5738108801
21 767131
22 59996854928656801
23 686551
24 23735900452321
25 28143378001
26 42426476041450801
27 119611

List of values

[11, 41, 31, 2161, 151, 2521, 911, 3041, 541, 570601, 39161, 20641, 24571, 12317523121, 18451, 23725145626561, 12760031, 10783342081, 87382901, 5738108801, 767131, 59996854928656801, 686551, 23735900452321, 28143378001, 42426476041450801, 119611]

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

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