A015027 - OEIS

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A015027 as a simple table

n	a(n)
1	1
2	-11
3	-1463
4	2333485
5	44665236385
6	-10259202810507035
7	-28277368892180867021255
8	935288538953861649874525071325
9	371221802129246962654056875248358359825
10	-1768082733073463162105209099485375242162416580075

[1,-11,-1463,2333485,44665236385, -10259202810507035,-28277368892180867021255, 935288538953861649874525071325, 371221802129246962654056875248358359825, -1768082733073463162105209099485375242162416580075\ ]