A009500 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

Other ways to Give

A009500 as a simple table

n	a(n)
0	1
1	0
2	-12
3	-80
4	4368
5	194048
6	-3700928
7	-1030112512
8	-37188370176
9	9180483559424
10	1551617290925056
11	-57029184668422144
12	-64584465763801165824
13	-7584064591475257901056
14	2920991959572460076482560

[1,0,-12,-80,4368,194048,-3700928,-1030112512, -37188370176,9180483559424,1551617290925056, -57029184668422144,-64584465763801165824, -7584064591475257901056,2920991959572460076482560]