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A021006 as a simple table

na(n)
04
111
230
382
4224
5612
61672
74568
812480
934096
1093152
11254496
12695296
131899584
145189760
1514178688
1638736896
17105831168
18289136128
19789934592
202158141440
215896152064
2216108587008
2344009478144
24120236130304

[4,11,30,82,224,612,1672,4568,12480,34096,93152,
 254496,695296,1899584,5189760,14178688,38736896,
 105831168,289136128,789934592,2158141440,
 5896152064,16108587008,44009478144,120236130304]