A013054 - OEIS

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A013054 as a simple table

n	a(n)
0	1
1	4
2	104
3	6598
4	778200
5	147293306
6	40870375036
7	15634022134518
8	7885949713950992
9	5071562424714844978
10	4050326064394675777988
11	3932747393021585152266894
12	4562459896809464230996563288

[1,4,104,6598,778200,147293306,40870375036, 15634022134518,7885949713950992, 5071562424714844978,4050326064394675777988, 3932747393021585152266894, 4562459896809464230996563288]

[1,4,104,6598,778200,147293306,40870375036,
 15634022134518,7885949713950992,
 5071562424714844978,4050326064394675777988,
 3932747393021585152266894,
 4562459896809464230996563288]