A000930 - OEIS

A000930 as a simple table

n	a(n)
0	1
1	1
2	1
3	2
4	3
5	4
6	6
7	9
8	13
9	19
10	28
11	41
12	60
13	88
14	129
15	189
16	277
17	406
18	595
19	872
20	1278
21	1873
22	2745
23	4023
24	5896
25	8641
26	12664
27	18560
28	27201
29	39865
30	58425
31	85626
32	125491
33	183916
34	269542
35	395033
36	578949
37	848491
38	1243524
39	1822473
40	2670964
41	3914488
42	5736961
43	8407925

[1,1,1,2,3,4,6,9,13,19,28,41,60,88,129,189,277, 406,595,872,1278,1873,2745,4023,5896,8641,12664, 18560,27201,39865,58425,85626,125491,183916, 269542,395033,578949,848491,1243524,1822473, 2670964,3914488,5736961,8407925]