A116209 - OEIS

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A116209 as a simple table

n	a(n)
1	1
2	13
3	41
4	653
5	2287
6	2723
7	5491
8	23240971
9	26823191
10	60249661
11	1841968537
12	2009317771
13	3044234903
14	3258336353
15	8166731261
16	9481619237
17	1281071245505271100098621541
18	1551605670846640136726379653

[1,13,41,653,2287,2723,5491,23240971,26823191, 60249661,1841968537,2009317771,3044234903, 3258336353,8166731261,9481619237, 1281071245505271100098621541, 1551605670846640136726379653]