A035940 - OEIS

A035940 as a simple table

n	a(n)
1	0
2	1
3	1
4	2
5	2
6	4
7	4
8	6
9	7
10	10
11	12
12	17
13	19
14	26
15	31
16	40
17	47
18	61
19	71
20	90
21	106
22	131
23	154
24	190
25	222
26	270
27	317
28	381
29	445
30	533
31	620
32	737
33	857
34	1011
35	1173
36	1379
37	1593
38	1863
39	2151
40	2503
41	2881
42	3343
43	3837
44	4435
45	5083
46	5853
47	6693
48	7688
49	8769
50	10043
51	11437
52	13061

[0,1,1,2,2,4,4,6,7,10,12,17,19,26,31,40,47,61,71, 90,106,131,154,190,222,270,317,381,445,533,620, 737,857,1011,1173,1379,1593,1863,2151,2503,2881, 3343,3837,4435,5083,5853,6693,7688,8769,10043, 11437,13061]