A233445 - OEIS

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A233445 as a simple table

n	a(n)
1	1
2	2
3	11
4	17
5	27
6	140
7	213
8	1934
9	13871
10	38405
11	171707
12	200938
13	389409
14	1633357
15	5460156
16	8405437
17	41983357
18	68780189
19	179376463
20	130292951546
21	393142151459
22	2100234982892
23	5942636062287

[1,2,11,17,27,140,213,1934,13871,38405,171707, 200938,389409,1633357,5460156,8405437,41983357, 68780189,179376463,130292951546,393142151459, 2100234982892,5942636062287]