A012663 - 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

A012663 as a simple table

n	a(n)
0	1
1	0
2	-1
3	-6
4	-11
5	100
6	1043
7	2702
8	-47287
9	-697656
10	-2382009
11	65150690
12	1227815037
13	4876299948
14	-197964434917
15	-4452683466122
16	-19212329422319
17	1119650941512592
18	28926172679801103
19	128264089711760074

[1,0,-1,-6,-11,100,1043,2702,-47287,-697656, -2382009,65150690,1227815037,4876299948, -197964434917,-4452683466122,-19212329422319, 1119650941512592,28926172679801103, 128264089711760074]