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A120984 as a simple table

na(n)
01
10
23
31
418
515
6138
7189
81218
92280
1011826
1127225
12123013
13325611
141346631
153919188
1615318342
1747563620
18179405250
19582336054
202148831144
217191954822
2226193070008
2389559039141
24323765075223
251123859351610
264047466156545

[1,0,3,1,18,15,138,189,1218,2280,11826,27225,
 123013,325611,1346631,3919188,15318342,47563620,
 179405250,582336054,2148831144,7191954822,
 26193070008,89559039141,323765075223,
 1123859351610,4047466156545]