login

A001922 as a simple table

na(n)
01
18
2105
31456
420273
5282360
63932761
754776288
8762935265
910626317416
10148005508553
112061450802320
1228712305723921
13399910829332568
145570039304932025
1577580639439715776
161080558912851088833
1715050244140475527880
18209622859053806301481

[1,8,105,1456,20273,282360,3932761,54776288,
 762935265,10626317416,148005508553,2061450802320,
 28712305723921,399910829332568,5570039304932025,
 77580639439715776,1080558912851088833,
 15050244140475527880,209622859053806301481]