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A123196 as a simple table

na(n)
12
24
37
414
527
650
797
8194
9387
10770
111539
123070
136137
1412270
1524539
1649072
1798141
18196270
19392517
20785020
211570037
223140044
236280085
2412560152
2525120299
2650240588
27100481175
28200962342
29401924669
30803849308
311607698611
323215397194

[2,4,7,14,27,50,97,194,387,770,1539,3070,6137,
 12270,24539,49072,98141,196270,392517,785020,
 1570037,3140044,6280085,12560152,25120299,
 50240588,100481175,200962342,401924669,803849308,
 1607698611,3215397194]