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A258888 as a simple table

na(n)
1900
22304
34489
410680
523409
651188
7104329
8216395
9430336
10849760
111635841
123133971
135904900
1411044072
1520421361
1637522132
1768376361
18123865010
19222994489
20399409023
21711929124
221263316100
232233035025
243931870085
256900957184

[900,2304,4489,10680,23409,51188,104329,216395,
 430336,849760,1635841,3133971,5904900,11044072,
 20421361,37522132,68376361,123865010,222994489,
 399409023,711929124,1263316100,2233035025,
 3931870085,6900957184]