A159201 - OEIS

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A159201 as a simple table

n	a(n)
3	135
4	767
5	3223
6	10863
7	41455
8	133967
9	386559
10	1297583
11	3874159
12	10725327
13	34367791
14	100153391
15	275262975
16	866491247
17	2509423663
18	6914468943

[135,767,3223,10863,41455,133967,386559,1297583, 3874159,10725327,34367791,100153391,275262975, 866491247,2509423663,6914468943]

[135,767,3223,10863,41455,133967,386559,1297583,
 3874159,10725327,34367791,100153391,275262975,
 866491247,2509423663,6914468943]