A168132 - OEIS

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A168132 as a simple table

n	a(n)
1	1
2	2
3	7
4	9
5	14
6	52
7	149
8	213
9	673
10	1778
11	3653
12	6831
13	9868
14	570972
15	2835107
16	3613594
17	47211979
18	60418265
19	99909506
20	1701207282
21	4587170542
22	10955668024
23	29031152874
24	114018751785
25	813149731047

[1,2,7,9,14,52,149,213,673,1778,3653,6831,9868, 570972,2835107,3613594,47211979,60418265,99909506, 1701207282,4587170542,10955668024,29031152874, 114018751785,813149731047]