A005684 - OEIS

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A005684 as a simple table

n	a(n)
6	1
7	2
8	4
9	6
10	11
11	18
12	32
13	52
14	88
15	142
16	236
17	382
18	629
19	1018
20	1664
21	2692
22	4383
23	7092
24	11520
25	18640
26	30232
27	48916
28	79264
29	128252
30	207705
31	336074
32	544084

[1,2,4,6,11,18,32,52,88,142,236,382,629,1018,1664, 2692,4383,7092,11520,18640,30232,48916,79264, 128252,207705,336074,544084]