A087123 - OEIS

A087123 as a simple table

n	a(n)
0	1
1	2
2	1
3	5
4	2
5	13
6	5
7	34
8	13
9	89
10	34
11	233
12	89
13	610
14	233
15	1597
16	610
17	4181
18	1597
19	10946
20	4181
21	28657
22	10946
23	75025
24	28657
25	196418
26	75025
27	514229
28	196418
29	1346269
30	514229
31	3524578
32	1346269
33	9227465
34	3524578
35	24157817
36	9227465
37	63245986
38	24157817

[1,2,1,5,2,13,5,34,13,89,34,233,89,610,233,1597, 610,4181,1597,10946,4181,28657,10946,75025,28657, 196418,75025,514229,196418,1346269,514229,3524578, 1346269,9227465,3524578,24157817,9227465,63245986, 24157817]