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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.

A344494 Triangle read by rows: The d-th row contains the Betti numbers of the d-dimensional resonance arrangement.

Table of values

n a(n)
1 1
2 3
3 2
4 7
5 15
6 9
7 15
8 80
9 170
10 104
11 31
12 375
13 2130
14 5270
15 3485
16 63
17 1652
18 22435
19 159460
20 510524
21 371909
22 127
23 7035
24 215439
25 3831835
26 37769977
27 169824305
28 135677633
29 255
30 29360
31 1957200
32 81029004
33 2076831708
34 30623870732
35 207507589302
36 178881449368
37 511
38 120975
39 17153460
40 1582492380
41 96834110730
42 3829831100340
43 89702833260450
44 973784079284874
45 887815808473419

List of values

[1, 3, 2, 7, 15, 9, 15, 80, 170, 104, 31, 375, 2130, 5270, 3485, 63, 1652, 22435, 159460, 510524, 371909, 127, 7035, 215439, 3831835, 37769977, 169824305, 135677633, 255, 29360, 1957200, 81029004, 2076831708, 30623870732, 207507589302, 178881449368, 511, 120975, 17153460, 1582492380, 96834110730, 3829831100340, 89702833260450, 973784079284874, 887815808473419]

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

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