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A054618 as a simple table

na(n)
11
22
36
43
512
633
74
824
996
10280
115
1240
13255
141040
153145
166
1784
18780
194200
2015810
2146956
227
23140
242205
2516408
2678155
27279972
28823585
298
30288
316672
3265840
33391320
341681008
355767328
3616781472
379
38540
3919755
40262296
411953405
4210078164
4340354335
44134218800
45387422001

[1,2,6,3,12,33,4,24,96,280,5,40,255,1040,3145,6,
 84,780,4200,15810,46956,7,140,2205,16408,78155,
 279972,823585,8,288,6672,65840,391320,1681008,
 5767328,16781472,9,540,19755,262296,1953405,
 10078164,40354335,134218800,387422001]