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A285944 as a simple table

na(n)
01
12
22
34
412
58
656
716
848
9160
10480
111088
123264
132688
1416256
15256
16768
172560
187680
1917408
2052224
21174080
22522240
231052672
243158016
2510526720
2631580160
2771581696
28214745088
29178946048
301073709056
3165536
32196608
33655360
341966080
354456448
3613369344

[1,2,2,4,12,8,56,16,48,160,480,1088,3264,2688,
 16256,256,768,2560,7680,17408,52224,174080,522240,
 1052672,3158016,10526720,31580160,71581696,
 214745088,178946048,1073709056,65536,196608,
 655360,1966080,4456448,13369344]