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A128865 as a simple table

na(n)
14
2108
31372
413500
5119164
61000188
78193532
866325500
9533731324
104282396668
1134309431292
12274676629500
132198218047484
1417588965015548
15140724603846652
161125848368021500
179006993097883644
1872056769407352828
19576457453774831612

[4,108,1372,13500,119164,1000188,8193532,66325500,
 533731324,4282396668,34309431292,274676629500,
 2198218047484,17588965015548,140724603846652,
 1125848368021500,9006993097883644,
 72056769407352828,576457453774831612]