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A197246 as a simple table

na(n)
11
216
353
4275
5780
65713
716773
898870
9393913
101869033
118527840
1232730687
13177791439
14674100600
153386483171
1613856198755
1766236228308
18289604893615
191242844626331
205912414575588
2124990706118619
22116867053171491

[1,16,53,275,780,5713,16773,98870,393913,1869033,
 8527840,32730687,177791439,674100600,3386483171,
 13856198755,66236228308,289604893615,
 1242844626331,5912414575588,24990706118619,
 116867053171491]