A171202 - OEIS

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A171202 as a simple table

n	a(n)
0	1
1	1
2	8
3	152
4	5664
5	399376
6	53846016
7	14141384704
8	7330134466560
9	7551251740344320
10	15510852680588984320
11	63626087316632048238592
12	521607805205244557347782656
13	8549156556447111748331767857152

[1,1,8,152,5664,399376,53846016,14141384704, 7330134466560,7551251740344320, 15510852680588984320,63626087316632048238592, 521607805205244557347782656, 8549156556447111748331767857152]