A213151 - OEIS

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A213151 as a simple table

n	a(n)
0	1
1	-7
2	-14
3	854
4	7000
5	-405832
6	-7373744
7	396878384
8	13211201920
9	-640085041792
10	-35826474785024
11	1495566369860864
12	136414677606538240
13	-4577281372443415552
14	-691769416923579029504
15	16372660554702059116544

[1,-7,-14,854,7000,-405832,-7373744,396878384, 13211201920,-640085041792,-35826474785024, 1495566369860864,136414677606538240, -4577281372443415552,-691769416923579029504, 16372660554702059116544]