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A191494 as a simple table

na(n)
01
164
21094
38192
439063
5139968
6411772
71048576
82391485
95000000
109743586
1117915904
1231374259
1352706752
1485429688
15134217728
16205169337
17306110016
18446935870
19640000000
20900544271
211247178944
221702412724
232293235712
243051757813
254015905088

[1,64,1094,8192,39063,139968,411772,1048576,
 2391485,5000000,9743586,17915904,31374259,
 52706752,85429688,134217728,205169337,306110016,
 446935870,640000000,900544271,1247178944,
 1702412724,2293235712,3051757813,4015905088]