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A250784 as a simple table

na(n)
118
246
3106
4238
5518
61106
72326
84838
99978
1020446
1141686
1284658
13171398
14346166
15697786
161404398
172823078
185669266
1911375926
2022812358
2145722618
2291603646
23183463606
24367341938
25735354918
261471795606
272945348026
285893538638

[18,46,106,238,518,1106,2326,4838,9978,20446,
 41686,84658,171398,346166,697786,1404398,2823078,
 5669266,11375926,22812358,45722618,91603646,
 183463606,367341938,735354918,1471795606,
 2945348026,5893538638]