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A280401 as a simple table

na(n)
10
214
366
4238
5769
62432
77440
822494
966934
10197146
11575042
121664510
134785950
1413683634
1538931434
16110291246
17311272806
18875559938
192455439762
206867568958
2119161061470
2253342827474
23148202912538
24410993902254
251137828238230

[0,14,66,238,769,2432,7440,22494,66934,197146,
 575042,1664510,4785950,13683634,38931434,
 110291246,311272806,875559938,2455439762,
 6867568958,19161061470,53342827474,148202912538,
 410993902254,1137828238230]