cp's OEIS Frontend

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.

A213349 7-quantum transitions in systems of N >= 7 spin 1/2 particles, in columns by combination indices.

Table of values

n a(n)
7 1
8 16
9 144
10 9
11 960
12 180
13 5280
14 1980
15 55
16 25344
17 15840
18 1320
19 109824
20 102960
21 17160
22 286
23 439296
24 576576
25 160160
26 8008
27 1647360
28 2882880
29 1201200
30 120120
31 1365
32 5857280
33 13178880
34 7687680
35 1281280
36 43680
37 19914752
38 56010240

List of values

[1, 16, 144, 9, 960, 180, 5280, 1980, 55, 25344, 15840, 1320, 109824, 102960, 17160, 286, 439296, 576576, 160160, 8008, 1647360, 2882880, 1201200, 120120, 1365, 5857280, 13178880, 7687680, 1281280, 43680, 19914752, 56010240]

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

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