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A339440 as a simple table

na(n)
00
11
22
39
444
5230
61236
76790
837832
9213057
101209660
116912367
1239705516
13229055918
141326168018
157701734250
1644846271632
17261735599172
181530650010312
198967361033572
2052619233554120
21309203221308702
221819290987055630
2310716835948503349
2463196331969007264

[0,1,2,9,44,230,1236,6790,37832,213057,1209660,
 6912367,39705516,229055918,1326168018,7701734250,
 44846271632,261735599172,1530650010312,
 8967361033572,52619233554120,309203221308702,
 1819290987055630,10716835948503349,
 63196331969007264]