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A156661 as a simple table

na(n)
01
138
2361
327436
4130321
54952198
647045881
77150973912
816983563041
9645375395558
106131066257801
11465961035592876
122213314919066161
1384105966924514118
14799006685782884121
15242898032477996772784

[1,38,361,27436,130321,4952198,47045881,
 7150973912,16983563041,645375395558,6131066257801,
 465961035592876,2213314919066161,
 84105966924514118,799006685782884121,
 242898032477996772784]