login

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

A181063 as a simple table

na(n)
11
22
36
412
53960
660
7420
8840
917907120
102520
11411863760
1227720
1368502634200
14447069823200
15360360
16720720
177600186994400
1812252240
199524356075634400
2081909462250455840
211149071006394511200
22232792560
2335621201198229847200
245354228880
2591351145008363640400

[1,2,6,12,3960,60,420,840,17907120,2520,411863760,
 27720,68502634200,447069823200,360360,720720,
 7600186994400,12252240,9524356075634400,
 81909462250455840,1149071006394511200,232792560,
 35621201198229847200,5354228880,
 91351145008363640400]