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A281397 as a simple table

na(n)
10
2170
3689
42146
55892
613446
730959
873600
9169161
10384546
11874926
121975442
134434817
149919920
1522098196
1649065818
17108622142
18239782662
19528047528
201160306466
212544313452
225568815362
2312167899747
2426544765678
2557823995949

[0,170,689,2146,5892,13446,30959,73600,169161,
 384546,874926,1975442,4434817,9919920,22098196,
 49065818,108622142,239782662,528047528,1160306466,
 2544313452,5568815362,12167899747,26544765678,
 57823995949]