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A264471 as a simple table

na(n)
10
24
36
416
549
6124
7384
81041
92868
108189
1122760
1263910
13179095
14500979
151405340
163935526
1711024880
1830892270
1986537090
20242454683
21679254490
221902958308
235331384633
2414936238820
2541845207329
26117233159460
27328438385380

[0,4,6,16,49,124,384,1041,2868,8189,22760,63910,
 179095,500979,1405340,3935526,11024880,30892270,
 86537090,242454683,679254490,1902958308,
 5331384633,14936238820,41845207329,117233159460,
 328438385380]