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A042446 as a simple table

na(n)
027
155
2137
31151
41288
53727
65015
718772
898875
9117647
10569463
11687110
121256573
131943683
147087622
159031305
1616118927
1757388086
18589999787
19647387873
201884775533
2113840816604
2229566408741

[27,55,137,1151,1288,3727,5015,18772,98875,117647,
 569463,687110,1256573,1943683,7087622,9031305,
 16118927,57388086,589999787,647387873,1884775533,
 13840816604,29566408741]