A204261 - OEIS

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A204261 as a simple table

n	a(n)
1	1
2	2
3	13
4	104
5	1357
6	22052
7	555325
8	17622590
9	680239111
10	31511481788
11	1717710101869
12	109014509616567
13	8596454332733239
14	783330147715515842
15	79369033657791374935
16	9105430313767018411610

[1,2,13,104,1357,22052,555325,17622590,680239111, 31511481788,1717710101869,109014509616567, 8596454332733239,783330147715515842, 79369033657791374935,9105430313767018411610]

[1,2,13,104,1357,22052,555325,17622590,680239111,
 31511481788,1717710101869,109014509616567,
 8596454332733239,783330147715515842,
 79369033657791374935,9105430313767018411610]