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A287140 as a simple table

na(n)
01
11
26
37
424
531
6120
731
8480
9383
100
11511
127680
134607
1422912
1510751
161536
178191
18507904
19294911
201507328
21901119
220
233604479
2429409280
2518579455
2684082688
2757540607
28786432
291035075583
30809336832
312800877567
323231055872
33452984831
34201326592
3566068676607

[1,1,6,7,24,31,120,31,480,383,0,511,7680,4607,
 22912,10751,1536,8191,507904,294911,1507328,
 901119,0,3604479,29409280,18579455,84082688,
 57540607,786432,1035075583,809336832,2800877567,
 3231055872,452984831,201326592,66068676607]