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A135139 as a simple table

na(n)
01
12
24
312
424
568
6144
7388
8856
92228
105056
1112852
1229736
1374372
14174384
15431332
161020664
172505428
185965984
1914568468
2034840776
2184774308
22203340816
23493553092
241186252696
252874447092
266918369664
2716744740852
2840340742504
2997560443588

[1,2,4,12,24,68,144,388,856,2228,5056,12852,29736,
 74372,174384,431332,1020664,2505428,5965984,
 14568468,34840776,84774308,203340816,493553092,
 1186252696,2874447092,6918369664,16744740852,
 40340742504,97560443588]