login

A072853 as a simple table

na(n)
11
22
36
418
554
6162
7486
81394
93991
1011593
1133772
1298320
13286072
14831952
152418664
167030816
1720441944
1859441521
19172843609
20502580846
211461344622
224249102850
2312354982862
2435924300898
25104456501102
26303726483778
27883140022543

[1,2,6,18,54,162,486,1394,3991,11593,33772,98320,
 286072,831952,2418664,7030816,20441944,59441521,
 172843609,502580846,1461344622,4249102850,
 12354982862,35924300898,104456501102,303726483778,
 883140022543]