A012694 - OEIS

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A012694 as a simple table

n	a(n)
0	1
1	2
2	0
3	-50
4	1400
5	-35222
6	94556
7	170807390
8	-38605204656
9	8791324177746
10	-2481630462515900
11	912971947568647558
12	-429970979043182394888
13	249025730862440011229306
14	-171416914808317798189712276

[1,2,0,-50,1400,-35222,94556,170807390, -38605204656,8791324177746,-2481630462515900, 912971947568647558,-429970979043182394888, 249025730862440011229306, -171416914808317798189712276]