A025704 - OEIS

A025704 as a simple table

n	a(n)
1	1
2	2
3	4
4	7
5	10
6	14
7	19
8	24
9	30
10	37
11	45
12	53
13	62
14	72
15	82
16	93
17	105
18	118
19	131
20	145
21	160
22	175
23	191
24	208
25	226
26	244
27	263
28	283
29	303
30	324
31	346
32	369
33	392
34	416
35	441
36	466
37	492
38	519
39	547
40	575
41	604
42	634
43	664
44	695
45	727
46	760
47	793
48	827
49	862
50	897
51	933
52	970
53	1008
54	1046
55	1085
56	1125
57	1165

[1,2,4,7,10,14,19,24,30,37,45,53,62,72,82,93,105, 118,131,145,160,175,191,208,226,244,263,283,303, 324,346,369,392,416,441,466,492,519,547,575,604, 634,664,695,727,760,793,827,862,897,933,970,1008, 1046,1085,1125,1165]