A022864 - OEIS

A022864 as a simple table

n	a(n)
1	1
2	2
3	2
4	3
5	5
6	7
7	10
8	16
9	25
10	41
11	65
12	105
13	169
14	274
15	443
16	720
17	1169
18	1898
19	3082
20	5007
21	8135
22	13216
23	21473
24	34891
25	56692
26	92118
27	149682
28	243219
29	395210
30	642182
31	1043490
32	1695582
33	2755177
34	4476933
35	7274641
36	11820688
37	19207633
38	31210810

[1,2,2,3,5,7,10,16,25,41,65,105,169,274,443,720, 1169,1898,3082,5007,8135,13216,21473,34891,56692, 92118,149682,243219,395210,642182,1043490,1695582, 2755177,4476933,7274641,11820688,19207633, 31210810]