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A192387 as a simple table

na(n)
10
22
34
432
596
6512
71856
88576
933792
10147456
11602112
122566144
1310637312
1444892160
15187269120
16787087360
173292069888
1813812760576
1957837355008
20242497880064
211015868817408
224258009186304
2317841063460864
2474771320537088
25313317428035584

[0,2,4,32,96,512,1856,8576,33792,147456,602112,
 2566144,10637312,44892160,187269120,787087360,
 3292069888,13812760576,57837355008,242497880064,
 1015868817408,4258009186304,17841063460864,
 74771320537088,313317428035584]