A303440 - OEIS

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A303440 as a simple table

n	a(n)
0	1
1	2
2	10
3	148
4	8502
5	2114924
6	2151771524
7	8800410198536
8	144132802083312550
9	9445021284412120235340
10	2475898969479166225559648172
11	2596153381122039693822323043973720
12	10889040933791649565507987988056678914620

[1,2,10,148,8502,2114924,2151771524,8800410198536, 144132802083312550,9445021284412120235340, 2475898969479166225559648172, 2596153381122039693822323043973720, 10889040933791649565507987988056678914620]