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A270240 as a simple table

na(n)
01
17
256
3364
42198
512292
665240
7330262
81608866
97575967
1034636896
11154235319
12670752411
132855122319
1411917598512
1548858820584
16197008297955
17782223365518
183061514606822
1911822306812232
2045080137355687
21169865159676365
22632916329409504
232333298558227399

[1,7,56,364,2198,12292,65240,330262,1608866,
 7575967,34636896,154235319,670752411,2855122319,
 11917598512,48858820584,197008297955,782223365518,
 3061514606822,11822306812232,45080137355687,
 169865159676365,632916329409504,2333298558227399]