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A150101 as a simple table

na(n)
01
12
26
319
468
5253
6982
73904
815904
965870
10276702
111176029
125049443
1321864431
1495369300
15418700058
161848734071
178204001286
1836570660638
19163685587764
20735324507172
213314279623363
2214983732949119
2367929967517380
24308753250967957
251406646255864308
266422545729056850
2729383868785665040

[1,2,6,19,68,253,982,3904,15904,65870,276702,
 1176029,5049443,21864431,95369300,418700058,
 1848734071,8204001286,36570660638,163685587764,
 735324507172,3314279623363,14983732949119,
 67929967517380,308753250967957,1406646255864308,
 6422545729056850,29383868785665040]