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A280525 as a simple table

na(n)
01
13
24
312
416
548
668
7204
8256
9776
101088
113298
124097
1312451
1417472
1552962
1665809
17198931
18279872
19847842
201052689
213182611
224478016
2313565026
2416843025
2550922387
2671647232
27217041538
28269485313
29814747563
301146372180
313472640636
324311827712
3313036154752

[1,3,4,12,16,48,68,204,256,776,1088,3298,4097,
 12451,17472,52962,65809,198931,279872,847842,
 1052689,3182611,4478016,13565026,16843025,
 50922387,71647232,217041538,269485313,814747563,
 1146372180,3472640636,4311827712,13036154752]