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A218832 as a simple table

na(n)
10
21
312
449
5132
6289
7552
8961
91560
102401
113540
125041
136972
149409
1512432
1616129
1720592
1825921
1932220
2039601
2148180
2258081
2369432
2482369
2597032
26113569
27132132
28152881
29175980
30201601
31229920
32261121
33295392
34332929
35373932
36418609
37467172
38519841
39576840
40638401

[0,1,12,49,132,289,552,961,1560,2401,3540,5041,
 6972,9409,12432,16129,20592,25921,32220,39601,
 48180,58081,69432,82369,97032,113569,132132,
 152881,175980,201601,229920,261121,295392,332929,
 373932,418609,467172,519841,576840,638401]