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A046736 as a simple table

na(n)
21
30
41
51
64
78
825
964
10191
11540
121616
134785
1414512
1544084
16135545
17418609
181302340
194070124
2012785859
2140325828
22127689288
23405689020
241293060464
254133173256
2613246527139
2742557271268
28137032656700
29442158893833
301429468244788

[1,0,1,1,4,8,25,64,191,540,1616,4785,14512,44084,
 135545,418609,1302340,4070124,12785859,40325828,
 127689288,405689020,1293060464,4133173256,
 13246527139,42557271268,137032656700,442158893833,
 1429468244788]