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A048489 as a simple table

na(n)
01
18
222
350
4106
5218
6442
7890
81786
93578
107162
1114330
1228666
1357338
14114682
15229370
16458746
17917498
181835002
193670010
207340026
2114680058
2229360122
2358720250
24117440506
25234881018
26469762042
27939524090
281879048186

[1,8,22,50,106,218,442,890,1786,3578,7162,14330,
 28666,57338,114682,229370,458746,917498,1835002,
 3670010,7340026,14680058,29360122,58720250,
 117440506,234881018,469762042,939524090,
 1879048186]