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A150337 as a simple table

na(n)
01
12
27
323
486
5324
61299
75220
821719
990339
10384266
111636936
127082536
1330702416
14134564005
15590760674
162614779499
1711592637398
1851721170509
19231138434046
201038072189221
214669365170633
2221086844125900
2395366701040696
24432706722580237
251965994726429393
268956638737150482
2740856306161760969

[1,2,7,23,86,324,1299,5220,21719,90339,384266,
 1636936,7082536,30702416,134564005,590760674,
 2614779499,11592637398,51721170509,231138434046,
 1038072189221,4669365170633,21086844125900,
 95366701040696,432706722580237,1965994726429393,
 8956638737150482,40856306161760969]