A197653 - OEIS

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A197653 as a triangular array

								1
							4		1
						15		30		1
					40		324		120		1
				85		2080		3120		340		1
			156		9375		40000		18750		780		1
		259		32886		328125		437500		82215		1554		1
	400		96040		1959216		6002500		3265360		288120		2800		1

A197653 as a square array

1	4	15	40	85	156	259	400
1	30	324	2080	9375	32886	96040
1	120	3120	40000	328125	1959216
1	340	18750	437500	6002500
1	780	82215	3265360
1	1554	288120
1	2800
1

A197653 as an upper right triangle

1	4	15	40	85	156	259	400
	1	30	324	2080	9375	32886	96040
		1	120	3120	40000	328125	1959216
			1	340	18750	437500	6002500
				1	780	82215	3265360
					1	1554	288120
						1	2800
							1