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A138444 formatted as a simple table:

n a(n)
1 12
2 144
3 3120
4 23520
5 354288
6 965328
7 4827456
8 9409104
9 29607072
10 118964496
11 177500544
12 513145008
13 950020512
14 1264272240
15 2155842624
16 4432871664
17 8436106032
18 10304074128
19 18091675536
20 25620055776
21 30266844192
22 48617489856

[12,144,3120,23520,354288,965328,4827456,9409104,
 29607072,118964496,177500544,513145008,950020512,
 1264272240,2155842624,4432871664,8436106032,
 10304074128,18091675536,25620055776,30266844192,
 48617489856]

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.


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