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A289928 as a simple table

na(n)
01
14
214
348
4162
5547
61842
76206
820906
970438
10237326
11799629
122694199
139077599
1430585239
15103051135
16347211149
171169861760
183941626163
1913280557904
2044746308037
21150764154490
22507971076799
231711511703373
245766612400708
2519429501132982
2665464000013233

[1,4,14,48,162,547,1842,6206,20906,70438,237326,
 799629,2694199,9077599,30585239,103051135,
 347211149,1169861760,3941626163,13280557904,
 44746308037,150764154490,507971076799,
 1711511703373,5766612400708,19429501132982,
 65464000013233]