A023669 - OEIS

A023669 as a simple table

n	a(n)
1	0
2	2
3	7
4	12
5	19
6	30
7	42
8	57
9	75
10	93
11	114
12	137
13	162
14	191
15	222
16	255
17	292
18	330
19	372
20	414
21	457
22	504
23	553
24	605
25	660
26	716
27	777
28	839
29	903
30	972
31	1041
32	1114
33	1190
34	1267
35	1347
36	1427
37	1510
38	1597
39	1684
40	1777
41	1870
42	1966
43	2065
44	2166
45	2271
46	2378
47	2486
48	2600

[0,2,7,12,19,30,42,57,75,93,114,137,162,191,222, 255,292,330,372,414,457,504,553,605,660,716,777, 839,903,972,1041,1114,1190,1267,1347,1427,1510, 1597,1684,1777,1870,1966,2065,2166,2271,2378,2486, 2600]