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A280481 as a simple table

na(n)
10
26
322
463
5162
6381
7884
81995
94478
109913
1121832
1247687
13103666
14224117
15482556
161034819
172211686
184712113
1910011696
2021217471
2144862298
2294656621
23199333092
24419016123
25879354062
261842593961
273855445784
288056377655
2916813670338

[0,6,22,63,162,381,884,1995,4478,9913,21832,47687,
 103666,224117,482556,1034819,2211686,4712113,
 10011696,21217471,44862298,94656621,199333092,
 419016123,879354062,1842593961,3855445784,
 8056377655,16813670338]