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A288070 as a simple table

na(n)
13
293
3273
41617
5684
63993
758695
891355
9572793
10167055
11441519
1213991016
132337513
1420225991
1548163788
1620625997
17148789675
18470944675
19626064036
20506112555
21963071088
22494359089
233252701700
243972446520
254515893681
263472027000
279096968436

[3,93,273,1617,684,3993,58695,91355,572793,167055,
 441519,13991016,2337513,20225991,48163788,
 20625997,148789675,470944675,626064036,506112555,
 963071088,494359089,3252701700,3972446520,
 4515893681,3472027000,9096968436]