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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.

A213348 6-quantum transitions in systems of N >= 6 spin 1/2 particles, in columns by combination indices.

Table of values

n a(n)
6 1
7 14
8 112
9 8
10 672
11 144
12 3360
13 1440
14 45
15 14784
16 10560
17 990
18 59136
19 63360
20 11880
21 220
22 219648
23 329472
24 102960
25 5720
26 768768
27 1537536
28 720720
29 80080
30 1001
31 2562560
32 6589440
33 4324320
34 800800
35 30030
36 8200192
37 26357760
38 23063040

List of values

[1, 14, 112, 8, 672, 144, 3360, 1440, 45, 14784, 10560, 990, 59136, 63360, 11880, 220, 219648, 329472, 102960, 5720, 768768, 1537536, 720720, 80080, 1001, 2562560, 6589440, 4324320, 800800, 30030, 8200192, 26357760, 23063040]

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

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