A391950 - OEIS

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A391950 as a triangular array

									2
								12		0
							120		8		2
						1680		160		48		0
					30240		3360		1064		24		2
				665280		80640		26208		960		108		0
			17297280		2217600		731808		33696		4240		48		2
		518918400		69189120		23063040		1216512		162624		3200		192		0
	17643225600		2421619200		812972160		46949760		6520800		168672		11760		80		2

A391950 as a square array

2	12	120	1680	30240	665280	17297280	518918400	17643225600
0	8	160	3360	80640	2217600	69189120	2421619200
2	48	1064	26208	731808	23063040	812972160
0	24	960	33696	1216512	46949760
2	108	4240	162624	6520800
0	48	3200	168672
2	192	11760
0	80
2

A391950 as an upper right triangle

2	12	120	1680	30240	665280	17297280	518918400	17643225600
	0	8	160	3360	80640	2217600	69189120	2421619200
		2	48	1064	26208	731808	23063040	812972160
			0	24	960	33696	1216512	46949760
				2	108	4240	162624	6520800
					0	48	3200	168672
						2	192	11760
							0	80
								2