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A258868 as a simple table

na(n)
11
21
32
45
526
6287
7356
8395
9544
1011008
1121957
1232125
1342450
1450867
1555408
16206970
17358276
18384287
19403461
20735802
21783831
22969795
231192950
241383108

[1,1,2,5,26,287,356,395,544,11008,21957,32125,
 42450,50867,55408,206970,358276,384287,403461,
 735802,783831,969795,1192950,1383108]