login

A138272 as a simple table

na(n)
01
11
24
328
4268
53164
643672
7682632
811834536
9224283416
104597330748
11101100605540
122370095338372
1358924635472260
141546999678599872
1542734731811302304
161238309697485975648
1737538075865014728096

[1,1,4,28,268,3164,43672,682632,11834536,
 224283416,4597330748,101100605540,2370095338372,
 58924635472260,1546999678599872,42734731811302304,
 1238309697485975648,37538075865014728096]