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A042001 as a simple table

na(n)
01
11
27
38
415
523
6107
7237
8818
911689
1012507
11274336
12286843
134290138
1413157257
1530604652
16135575865
17166180517
18301756382
19467936899
203109377776
213577314675
22160511223476
23164088538151
241145042452382
251309130990533
262454173442915
273763304433448

[1,1,7,8,15,23,107,237,818,11689,12507,274336,
 286843,4290138,13157257,30604652,135575865,
 166180517,301756382,467936899,3109377776,
 3577314675,160511223476,164088538151,
 1145042452382,1309130990533,2454173442915,
 3763304433448]