A083704 - OEIS

A083704 as a simple table

n	a(n)
0	0
1	0
2	1
3	2
4	5
5	8
6	13
7	19
8	25
9	33
10	41
11	51
12	61
13	73
14	86
15	99
16	114
17	129
18	146
19	163
20	182
21	202
22	222
23	244
24	266
25	290
26	315
27	340
28	367
29	394
30	423
31	452
32	483
33	515
34	547
35	581
36	615
37	651
38	687
39	725
40	764
41	803
42	844
43	885
44	928
45	971
46	1016
47	1062
48	1108
49	1156
50	1204
51	1254
52	1305
53	1356
54	1409

[0,0,1,2,5,8,13,19,25,33,41,51,61,73,86,99,114, 129,146,163,182,202,222,244,266,290,315,340,367, 394,423,452,483,515,547,581,615,651,687,725,764, 803,844,885,928,971,1016,1062,1108,1156,1204,1254, 1305,1356,1409]