A012098 - 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

A012098 as a simple table

n	a(n)
0	1
1	-1
2	9
3	-249
4	13297
5	-1175761
6	154625721
7	-28328562313
8	6890453792609
9	-2147692998841633
10	834418870682339561
11	-395288520944694504345
12	224249503561141591847505
13	-150078278389547160573482225

[1,-1,9,-249,13297,-1175761,154625721, -28328562313,6890453792609,-2147692998841633, 834418870682339561,-395288520944694504345, 224249503561141591847505, -150078278389547160573482225]