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A122939 as a simple table

na(n)
01
12
23
36
417
570
6390
72776
824042
9244864
102862185
1137715474
12552685976
138910951840
14156709821779
152984589501562
1661188398397436
171343410717573876
1831445844702847347
19781689483100388326
2020564696601659697997

[1,2,3,6,17,70,390,2776,24042,244864,2862185,
 37715474,552685976,8910951840,156709821779,
 2984589501562,61188398397436,1343410717573876,
 31445844702847347,781689483100388326,
 20564696601659697997]