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A012727 as a simple table

n a(n)
0 1
1 2
2 12
3 328
4 13328
5 1160352
6 123701952
7 22207125120
8 4532782825728
9 1380071532433920
10 459909185638812672
11 212375023941305272320
12 104929881035116227072000
13 68350141067274779587092480

[1,2,12,328,13328,1160352,123701952,22207125120,
 4532782825728,1380071532433920,459909185638812672,
 212375023941305272320,104929881035116227072000,
 68350141067274779587092480]

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Last modified January 27 15:14 EST 2020. Contains 331295 sequences. (Running on oeis4.)