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A017951 as a simple table

na(n)
01
14
215
359
4225
5872
63375
713072
850625
9196070
10759375
112941047
1211390625
1344115701
14170859375
15661735514
162562890625
179926032709
1838443359375
19148890490632
20576650390625
212233357359475
228649755859375

[1,4,15,59,225,872,3375,13072,50625,196070,759375,
 2941047,11390625,44115701,170859375,661735514,
 2562890625,9926032709,38443359375,148890490632,
 576650390625,2233357359475,8649755859375]