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A025018 as a simple table

na(n)
14
26
312
430
598
6220
7308
8556
9992
102642
115372
127426
1343532
1454244
1563274
16113672
17128168
18194428
19194470
20413572
21503222
221077422
233526958
243807404
2510759922
2624106882
2727789878
2837998938
2960119912
30113632822
31187852862
32335070838

[4,6,12,30,98,220,308,556,992,2642,5372,7426,
 43532,54244,63274,113672,128168,194428,194470,
 413572,503222,1077422,3526958,3807404,10759922,
 24106882,27789878,37998938,60119912,113632822,
 187852862,335070838]