A024105 - OEIS

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A024105 as a simple table

n	a(n)
0	1
1	8
2	65
3	648
4	6305
5	58424
6	530145
7	4780568
8	43042625
9	387413928
10	3486774401
11	31381044968
12	282429515745
13	2541865799768
14	22876792416545
15	205891132044024
16	1853020188786305
17	16677181699583048
18	150094635296894145

[1,8,65,648,6305,58424,530145,4780568,43042625, 387413928,3486774401,31381044968,282429515745, 2541865799768,22876792416545,205891132044024, 1853020188786305,16677181699583048, 150094635296894145]