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A271893 as a simple table

na(n)
01
13
28
322
458
5156
6412
71100
82912
97752
1020552
1154640
12144976
13385200
141022464
152715872
167210400
1719149504
1850845376
19135026368
20358537216
21952107648
222528205952
236713619200
2417827416320
2547340073728
26125708097536
27333811992064
28886415931904
292353831246848
306250454268928
3116597737933824

[1,3,8,22,58,156,412,1100,2912,7752,20552,54640,
 144976,385200,1022464,2715872,7210400,19149504,
 50845376,135026368,358537216,952107648,2528205952,
 6713619200,17827416320,47340073728,125708097536,
 333811992064,886415931904,2353831246848,
 6250454268928,16597737933824]