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A307068 as a simple table

na(n)
01
11
22
36
414
534
688
7216
8532
91322
103290
118142
1220192
1350080
14124144
15307878
16763474
171893038
184694060
1911639580
2028861736
2171567206
22177460750
23440037738
241091134276
252705618900
266708953156
2716635775698
2841250705518
29102286806130
30253634237896
31628921097352
321559496588628

[1,1,2,6,14,34,88,216,532,1322,3290,8142,20192,
 50080,124144,307878,763474,1893038,4694060,
 11639580,28861736,71567206,177460750,440037738,
 1091134276,2705618900,6708953156,16635775698,
 41250705518,102286806130,253634237896,
 628921097352,1559496588628]