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A002570 as a simple table

na(n)
11
21
36
411
536
685
7235
8600
91590
104140
1110866
1228416
1374431
14194821
15510096
161335395
173496170
189153025
1923963005
2062735880
21164244756
22429998256
231125750156
242947252056
257716006181
2620200766305
2752886292930
28138458112275
29362488044120

[1,1,6,11,36,85,235,600,1590,4140,10866,28416,
 74431,194821,510096,1335395,3496170,9153025,
 23963005,62735880,164244756,429998256,1125750156,
 2947252056,7716006181,20200766305,52886292930,
 138458112275,362488044120]