A156618 - OEIS

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A156618 as a simple table

n	a(n)
0	7
1	-742
2	11978
3	-3740526
4	1099482930
5	-2202719155
6	6600663644
7	-26413901692
8	96840976853
9	-496325469560
10	2346251883960
11	-44006595799206
12	1345586183756654
13	-4127747481719463
14	10251870941174304

[7,-742,11978,-3740526,1099482930,-2202719155, 6600663644,-26413901692,96840976853,-496325469560, 2346251883960,-44006595799206,1345586183756654, -4127747481719463,10251870941174304]