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A242157 as a simple table

na(n)
51
65
730
8175
91120
107686
1156910
12452760
133858525
1435101495
15339725386
163487023540
1737846867240
18433186049100
195215583431800
2065904645333720
21872154648378075
2212063864339947700
23174104719888432025
242617216790440934220
2540916672402313971340

[1,5,30,175,1120,7686,56910,452760,3858525,
 35101495,339725386,3487023540,37846867240,
 433186049100,5215583431800,65904645333720,
 872154648378075,12063864339947700,
 174104719888432025,2617216790440934220,
 40916672402313971340]