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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.

A129409 Engel expansion of L(3, chi3), where L(s, chi3) is the Dirichlet L-function for the non-principal character modulo 3.

Table of values

n a(n)
1 2
2 2
3 2
4 14
5 94
6 372
7 1391
8 7690
9 17729
10 49204
11 87816
12 128433
13 151275
14 290477
15 297212
16 299837
17 352249
18 897751
19 1081032
20 1646358
21 2402614
22 36591866
23 49132456
24 93538655
25 141789387
26 180474393
27 687775235
28 851204316
29 1868593596
30 7042652755

List of values

[2, 2, 2, 14, 94, 372, 1391, 7690, 17729, 49204, 87816, 128433, 151275, 290477, 297212, 299837, 352249, 897751, 1081032, 1646358, 2402614, 36591866, 49132456, 93538655, 141789387, 180474393, 687775235, 851204316, 1868593596, 7042652755]

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

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