login

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

A215585 as a simple table

na(n)
01
10
20
3-3
40
510
690
7-308
8-1680
9-1560
10123480
1143032
12-5151960
13-40323920
14538618080
153880887592
16-32036135040
17-815589894720
184367132072640
19121636569852672
20-35223107829120
21-29236492773887360
22-32794445470765440
236014518868589379072
2445105535773064694400

[1,0,0,-3,0,10,90,-308,-1680,-1560,123480,43032,
 -5151960,-40323920,538618080,3880887592,
 -32036135040,-815589894720,4367132072640,
 121636569852672,-35223107829120,
 -29236492773887360,-32794445470765440,
 6014518868589379072,45105535773064694400]