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A217726 as a simple table

na(n)
15
27
3132
4167
5406
6934
76223
817593
9102359
10681328
111353044
122632746
1322205155
1464046056
15473656750
16527187892
17805878645
181224438252
193073382220
205064778663
217510104097
2217906359911
2323799832655
24114159565156
25303450183442
26557560997283
27662166504898

[5,7,132,167,406,934,6223,17593,102359,681328,
 1353044,2632746,22205155,64046056,473656750,
 527187892,805878645,1224438252,3073382220,
 5064778663,7510104097,17906359911,23799832655,
 114159565156,303450183442,557560997283,
 662166504898]