A004948 - OEIS

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A004948 as a simple table

n	a(n)
0	0
1	521
2	1042
3	1563
4	2084
5	2605
6	3126
7	3647
8	4168
9	4689
10	5210
11	5731
12	6252
13	6773
14	7294
15	7815
16	8336
17	8857
18	9378
19	9899
20	10420
21	10941
22	11462
23	11983
24	12504
25	13025
26	13546
27	14067
28	14588
29	15109
30	15630
31	16151

[0,521,1042,1563,2084,2605,3126,3647,4168,4689, 5210,5731,6252,6773,7294,7815,8336,8857,9378,9899, 10420,10941,11462,11983,12504,13025,13546,14067, 14588,15109,15630,16151]