A094021 - OEIS

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A094021 as a triangular array

										1
									1		1
								3		3		1
							12		14		6		1
						55		75		40		10		1
					273		429		275		90		15		1
				1428		2548		1911		770		175		21		1
			7752		15504		13328		6370		1820		308		28		1
		43263		95931		93024		51408		17640		3822		504		36		1
	246675		600875		648945		406980		162792		42840

A094021 as a square array

1	1	3	12	55	273	1428	7752	43263	246675
1	3	14	75	429	2548	15504	95931	600875
1	6	40	275	1911	13328	93024	648945
1	10	90	770	6370	51408	406980
1	15	175	1820	17640	162792
1	21	308	3822	42840
1	28	504
1	36
1

A094021 as an upper right triangle

1	1	3	12	55	273	1428	7752	43263	246675
	1	3	14	75	429	2548	15504	95931	600875
		1	6	40	275	1911	13328	93024	648945
			1	10	90	770	6370	51408	406980
				1	15	175	1820	17640	162792
					1	21	308	3822	42840
						1	28	504
							1	36
								1