A024808 - OEIS

A024808 as a simple table

n	a(n)
3	1
4	2
5	5
6	8
7	15
8	22
9	31
10	40
11	55
12	69
13	87
14	104
15	126
16	149
17	172
18	198
19	228
20	256
21	288
22	323
23	357
24	394
25	433
26	473
27	514
28	557
29	603
30	651
31	700
32	751
33	803
34	857
35	914
36	972
37	1031
38	1092
39	1156
40	1218
41	1285
42	1353
43	1423
44	1496
45	1569
46	1641
47	1718
48	1796
49	1877
50	1958
51	2041
52	2126
53	2211
54	2299

[1,2,5,8,15,22,31,40,55,69,87,104,126,149,172,198, 228,256,288,323,357,394,433,473,514,557,603,651, 700,751,803,857,914,972,1031,1092,1156,1218,1285, 1353,1423,1496,1569,1641,1718,1796,1877,1958,2041, 2126,2211,2299]