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A012602 as a simple table

na(n)
02
1-152
2469152
3-4992585600
4302439240061440
5-25272513424650885120
68822979791130082266685440
7-2618340641057955264580458086400

[2,-152,469152,-4992585600,302439240061440,
 -25272513424650885120,8822979791130082266685440,
 -2618340641057955264580458086400]