A104296 - OEIS

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A104296 as a simple table

n	a(n)
1	9
2	11
3	13
4	17
5	23
6	37
7	67
8	139
9	349
10	1039
11	3727
12	16007
13	81853
14	492059
15	3436987
16	27605857
17	252391267
18	2602897093
19	30034790941
20	384953881369
21	5444681375227
22	84482367674813

[9,11,13,17,23,37,67,139,349,1039,3727,16007, 81853,492059,3436987,27605857,252391267, 2602897093,30034790941,384953881369,5444681375227, 84482367674813]