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A143009 as a simple table

na(n)
01
125
2253
31445
45741
517861
646705
7107353
8223465
9430081
10776821
111331485
122184053
133451085
145280521
157856881
1611406865
1716205353
1822581805
1930927061
2041700541
2155437845
2272758753
2394375625
24121102201

[1,25,253,1445,5741,17861,46705,107353,223465,
 430081,776821,1331485,2184053,3451085,5280521,
 7856881,11406865,16205353,22581805,30927061,
 41700541,55437845,72758753,94375625,121102201]