A008012 - OEIS

A008012 as a simple table

n	a(n)
0	1
1	4
2	10
3	20
4	34
5	53
6	76
7	103
8	135
9	170
10	208
11	250
12	299
13	355
14	412
15	469
16	530
17	600
18	678
19	756
20	834
21	916
22	1006
23	1104
24	1202
25	1301
26	1404
27	1515
28	1635
29	1754
30	1872
31	1994
32	2127
33	2271
34	2412
35	2549
36	2690
37	2844
38	3010
39	3172
40	3330
41	3492
42	3666
43	3852
44	4034
45	4213
46	4396
47	4591

[1,4,10,20,34,53,76,103,135,170,208,250,299,355, 412,469,530,600,678,756,834,916,1006,1104,1202, 1301,1404,1515,1635,1754,1872,1994,2127,2271,2412, 2549,2690,2844,3010,3172,3330,3492,3666,3852,4034, 4213,4396,4591]