A053521 - OEIS

A053521 as a simple table

n	a(n)
1	1
2	1
3	3
4	5
5	9
6	15
7	25
8	41
9	67
10	109
11	177
12	287
13	465
14	753
15	1219
16	1973
17	3193
18	5167
19	8361
20	6765
21	1891
22	8657
23	5275
24	6967
25	3061
26	5015
27	8077
28	6547
29	7313
30	6931
31	7123
32	1757
33	8881
34	665
35	9547
36	5107
37	229
38	5337
39	5567
40	5453
41	5511
42	5483
43	2749
44	8233
45	1373
46	9607

[1,1,3,5,9,15,25,41,67,109,177,287,465,753,1219, 1973,3193,5167,8361,6765,1891,8657,5275,6967,3061, 5015,8077,6547,7313,6931,7123,1757,8881,665,9547, 5107,229,5337,5567,5453,5511,5483,2749,8233,1373, 9607]