A268222 - OEIS

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A268222 as a triangular array

								5
							15		30
						35		105		210
					70		280		840		1680
				126		630		2520		7560		210
			1260		6300		25200		75600		151200		330
		2310		13860		69300		277200		831600		1663200		495
	3960		27720		166320		831600		3326400		9979200		19958400

A268222 as a square array

5	15	35	70	126	1260	2310	3960
30	105	280	630	6300	13860	27720
210	840	2520	25200	69300	166320
1680	7560	75600	277200	831600
210	151200	831600	3326400
330	1663200	9979200
495	19958400

A268222 as an upper right triangle

5	15	35	70	126	1260	2310	3960
	30	105	280	630	6300	13860	27720
		210	840	2520	25200	69300	166320
			1680	7560	75600	277200	831600
				210	151200	831600	3326400
					330	1663200	9979200
						495	19958400