A120071 - OEIS

A120071 as a simple table

n	a(n)
0	0
1	21
2	44
3	69
4	96
5	125
6	156
7	189
8	224
9	261
10	300
11	341
12	384
13	429
14	476
15	525
16	576
17	629
18	684
19	741
20	800
21	861
22	924
23	989
24	1056
25	1125
26	1196
27	1269
28	1344
29	1421
30	1500
31	1581
32	1664
33	1749
34	1836
35	1925
36	2016
37	2109
38	2204
39	2301
40	2400
41	2501
42	2604
43	2709
44	2816
45	2925
46	3036
47	3149
48	3264

[0,21,44,69,96,125,156,189,224,261,300,341,384, 429,476,525,576,629,684,741,800,861,924,989,1056, 1125,1196,1269,1344,1421,1500,1581,1664,1749,1836, 1925,2016,2109,2204,2301,2400,2501,2604,2709,2816, 2925,3036,3149,3264]