A255852 - OEIS

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A255852 as a simple table

n	a(n)
0	1
1	0
2	1
3	51
4	1
5	40333
6	1
7	434
8	1
9	16
10	1
11	1234
12	1
13	78607
14	1
15	8310
16	1
17	817172
18	1
19	473
20	1
21	116
22	1
23	22650
24	1
25	736546059
26	1
27	22
28	1
29	1080982
30	1
31	252
32	1
33	7809
34	1
35	644
36	1
37	1786225573
38	1

[1,0,1,51,1,40333,1,434,1,16,1,1234,1,78607,1, 8310,1,817172,1,473,1,116,1,22650,1,736546059,1, 22,1,1080982,1,252,1,7809,1,644,1,1786225573,1]