A006003 - OEIS

A006003 as a simple table

n	a(n)
0	0
1	1
2	5
3	15
4	34
5	65
6	111
7	175
8	260
9	369
10	505
11	671
12	870
13	1105
14	1379
15	1695
16	2056
17	2465
18	2925
19	3439
20	4010
21	4641
22	5335
23	6095
24	6924
25	7825
26	8801
27	9855
28	10990
29	12209
30	13515
31	14911
32	16400
33	17985
34	19669
35	21455
36	23346
37	25345
38	27455
39	29679
40	32020
41	34481
42	37065
43	39775

[0,1,5,15,34,65,111,175,260,369,505,671,870,1105, 1379,1695,2056,2465,2925,3439,4010,4641,5335,6095, 6924,7825,8801,9855,10990,12209,13515,14911,16400, 17985,19669,21455,23346,25345,27455,29679,32020, 34481,37065,39775]