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A015533 as a simple table

na(n)
00
11
24
325
4136
5769
64300
724121
8135184
9757825
104247956
1123812249
12133480600
13748232641
144194255964
1523511117625
16131792774176
17738771155329
184141219588900
1923213818753561
20130126251314344
21729429374039425
224088853757986796
2322920279398302009

[0,1,4,25,136,769,4300,24121,135184,757825,
 4247956,23812249,133480600,748232641,4194255964,
 23511117625,131792774176,738771155329,
 4141219588900,23213818753561,130126251314344,
 729429374039425,4088853757986796,
 22920279398302009]