A008865 - OEIS

A008865 as a simple table

n	a(n)
1	-1
2	2
3	7
4	14
5	23
6	34
7	47
8	62
9	79
10	98
11	119
12	142
13	167
14	194
15	223
16	254
17	287
18	322
19	359
20	398
21	439
22	482
23	527
24	574
25	623
26	674
27	727
28	782
29	839
30	898
31	959
32	1022
33	1087
34	1154
35	1223
36	1294
37	1367
38	1442
39	1519
40	1598
41	1679
42	1762
43	1847
44	1934
45	2023
46	2114
47	2207
48	2302
49	2399
50	2498

[-1,2,7,14,23,34,47,62,79,98,119,142,167,194,223, 254,287,322,359,398,439,482,527,574,623,674,727, 782,839,898,959,1022,1087,1154,1223,1294,1367, 1442,1519,1598,1679,1762,1847,1934,2023,2114,2207, 2302,2399,2498]