login

Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.

A139156 as a simple table

na(n)
681
7561
84481
940321
10403201
114435201
1253222401
13691891201
149686476801
15145297152001
162324754432001
1739520825344001
18711374856192001
1913516122267648001
20270322445352960001
215676771352412160001

[81,561,4481,40321,403201,4435201,53222401,
 691891201,9686476801,145297152001,2324754432001,
 39520825344001,711374856192001,13516122267648001,
 270322445352960001,5676771352412160001]