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A162272 as a simple table

na(n)
01
18
258
3404
42764
518752
6126712
7854576
85758096
938780288
10261124768
111758081344
1211836068544
1379682895872
14536435450752
153611330798336
1624311728066816
17163668003104768
181101822013577728
197417524067472384
2049935156376013824
21336166034275745792
222263086902485153792

[1,8,58,404,2764,18752,126712,854576,5758096,
 38780288,261124768,1758081344,11836068544,
 79682895872,536435450752,3611330798336,
 24311728066816,163668003104768,1101822013577728,
 7417524067472384,49935156376013824,
 336166034275745792,2263086902485153792]