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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.

A218339 Triangle T(n,k) of orders of degree-n irreducible polynomials over GF(19) listed in ascending order.

Table of values

n a(n)
1 1
2 2
3 3
4 6
5 9
6 18
7 4
8 5
9 8
10 10
11 12
12 15
13 20
14 24
15 30
16 36
17 40
18 45
19 60
20 72
21 90
22 120
23 180
24 360
25 27
26 54
27 127
28 254
29 381
30 762
31 1143
32 2286
33 3429
34 6858
35 16
36 48
37 80
38 144
39 181
40 240
41 362
42 543
43 720
44 724
45 905
46 1086
47 1448
48 1629
49 1810
50 2172
51 2715
52 2896
53 3258
54 3620
55 4344
56 5430

List of values

[1, 2, 3, 6, 9, 18, 4, 5, 8, 10, 12, 15, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 27, 54, 127, 254, 381, 762, 1143, 2286, 3429, 6858, 16, 48, 80, 144, 181, 240, 362, 543, 720, 724, 905, 1086, 1448, 1629, 1810, 2172, 2715, 2896, 3258, 3620, 4344, 5430]