A331398 - OEIS

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A331398 as a simple table

n	a(n)
1	3
2	5
3	6
4	13
5	18
6	44
7	84
8	101
9	134
10	183
11	534
12	1113
13	1912
14	3103
15	3687
16	9758
17	9831
18	21942
19	31054
20	63752
21	184914
22	309601
23	855162
24	1293236
25	2577435
26	5579862
27	19224634
28	22991430
29	43953399
30	50920966

[3,5,6,13,18,44,84,101,134,183,534,1113,1912,3103, 3687,9758,9831,21942,31054,63752,184914,309601, 855162,1293236,2577435,5579862,19224634,22991430, 43953399,50920966]