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A060550 as a simple table

na(n)
10
20
30
41
50
61
72
81
92
106
112
126
1312
146
1512
1628
1712
1828
1956
2028
2156
22120
2356
24120
25240
26120
27240
28496
29240
30496
31992
32496
33992
342016
35992
362016
374032
382016
394032
408128
414032
428128
4316256
448128
4516256
4632640
4716256
4832640
4965280
5032640

[0,0,0,1,0,1,2,1,2,6,2,6,12,6,12,28,12,28,56,28,
 56,120,56,120,240,120,240,496,240,496,992,496,992,
 2016,992,2016,4032,2016,4032,8128,4032,8128,16256,
 8128,16256,32640,16256,32640,65280,32640]