A193272 - OEIS

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A193272 as a simple table

n	a(n)
1	1
2	2
3	42
4	12422
5	46043957
6	1141280241767
7	150904343382960765
8	103330870123503516426952
9	365608923633974657544208900050
10	6683711936086156432904840085269243480

[1,2,42,12422,46043957,1141280241767, 150904343382960765,103330870123503516426952, 365608923633974657544208900050, 6683711936086156432904840085269243480]