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A374455 as a simple table

na(n)
01
15
235
3235
41580
510626
671460
7480570
83231845
921734235
10146163251
11982951365
126610371480
1344454906580
14298960311840
152010515259876
1613520763292345
1790927457083265
18611489327404315
194112280377388895
2027655184063541876
21185981775414350150
221250731895575163300

[1,5,35,235,1580,10626,71460,480570,3231845,
 21734235,146163251,982951365,6610371480,
 44454906580,298960311840,2010515259876,
 13520763292345,90927457083265,611489327404315,
 4112280377388895,27655184063541876,
 185981775414350150,1250731895575163300]