A000326 - OEIS

A000326 as a simple table

n	a(n)
0	0
1	1
2	5
3	12
4	22
5	35
6	51
7	70
8	92
9	117
10	145
11	176
12	210
13	247
14	287
15	330
16	376
17	425
18	477
19	532
20	590
21	651
22	715
23	782
24	852
25	925
26	1001
27	1080
28	1162
29	1247
30	1335
31	1426
32	1520
33	1617
34	1717
35	1820
36	1926
37	2035
38	2147
39	2262
40	2380
41	2501
42	2625
43	2752
44	2882
45	3015
46	3151

[0,1,5,12,22,35,51,70,92,117,145,176,210,247,287, 330,376,425,477,532,590,651,715,782,852,925,1001, 1080,1162,1247,1335,1426,1520,1617,1717,1820,1926, 2035,2147,2262,2380,2501,2625,2752,2882,3015,3151]