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A287855 as a simple table

na(n)
01
12
20
38
48
532
632
7128
8128
9704
10512
112048
123584
138192
140
1561440
160
178192
18395264
1932768
208192
213375104
221605632
232228224
245898240
254718592
2676021760
271048576
28272629760
29289406976
301107296256
311124073472
325502926848
336174015488
3427917811712

[1,2,0,8,8,32,32,128,128,704,512,2048,3584,8192,0,
 61440,0,8192,395264,32768,8192,3375104,1605632,
 2228224,5898240,4718592,76021760,1048576,
 272629760,289406976,1107296256,1124073472,
 5502926848,6174015488,27917811712]