A154145 - OEIS

A154145 as a simple table

n	a(n)
1	1
2	4
3	6
4	11
5	20
6	33
7	43
8	70
9	121
10	196
11	254
12	411
13	708
14	1145
15	1483
16	2398
17	4129
18	6676
19	8646
20	13979
21	24068
22	38913
23	50395
24	81478
25	140281
26	226804
27	293726
28	474891
29	817620
30	1321913
31	1711963
32	2767870
33	4765441
34	7704676
35	9978054
36	16132331
37	27775028

[1,4,6,11,20,33,43,70,121,196,254,411,708,1145, 1483,2398,4129,6676,8646,13979,24068,38913,50395, 81478,140281,226804,293726,474891,817620,1321913, 1711963,2767870,4765441,7704676,9978054,16132331, 27775028]