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A027108 as a simple table

na(n)
01
15
216
350
4152
5452
61331
73897
811378
933186
1096791
11282461
12825013
132412157
147060154
1520686324
1660673102
17178126774
18523426827
191539393889
204530901919
2113345545959
2239335284312
23116011722730
24342354698603

[1,5,16,50,152,452,1331,3897,11378,33186,96791,
 282461,825013,2412157,7060154,20686324,60673102,
 178126774,523426827,1539393889,4530901919,
 13345545959,39335284312,116011722730,342354698603]