A165694 - OEIS

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A165694 as a simple table

n	a(n)
0	1
1	43
2	1806
3	75852
4	3185784
5	133802928
6	5619722976
7	236028364992
8	9913191329664
9	416354035844985
10	17486869505451444
11	734448519227368659
12	30846837807482620140
13	1295567187911461777284
14	54413821892163447364896

[1,43,1806,75852,3185784,133802928,5619722976, 236028364992,9913191329664,416354035844985, 17486869505451444,734448519227368659, 30846837807482620140,1295567187911461777284, 54413821892163447364896]