A222023 - OEIS

A222023 as a simple table

n	a(n)
1	2
2	3
3	4
4	7
5	11
6	16
7	26
8	42
9	65
10	105
11	168
12	265
13	424
14	675
15	1070
16	1707
17	2715
18	4315
19	6875
20	10937
21	17399
22	27704
23	44080
24	70145
25	111654
26	177672
27	282755
28	450022
29	716152
30	1139735
31	1813879
32	2886645
33	4594007
34	7311215
35	11635384
36	18517300
37	29469544

[2,3,4,7,11,16,26,42,65,105,168,265,424,675,1070, 1707,2715,4315,6875,10937,17399,27704,44080,70145, 111654,177672,282755,450022,716152,1139735, 1813879,2886645,4594007,7311215,11635384,18517300, 29469544]