A367677 - OEIS

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A367677 as a simple table

n	a(n)
1	1
2	1
3	1
4	2
5	23
6	289
7	254179
8	777607
9	22699340513
10	480319839870583
11	2390156990671551019
12	263173875833094285221
13	7370729029770126053601007351
14	20600083403482483161475107845607517

[1,1,1,2,23,289,254179,777607,22699340513, 480319839870583,2390156990671551019, 263173875833094285221, 7370729029770126053601007351, 20600083403482483161475107845607517]