A144299 - OEIS

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A144299 as a triangular array

												1
											1		0
										1		1		0
									1		3		0		0
								1		6		3		0		0
							1		10		15		0		0		0
						1		15		45		15		0		0		0
					1		21		105		105		0		0		0		0
				1		28		210		420		105		0		0		0		0
			1		36		378		1260		945		0		0		0		0		0
		1		45		630		3150		4725		945		0		0		0		0		0
	1		55		990		6930		17325		10395		0		0		0		0		0		0

A144299 as a square array

1	1	1	1	1	1	1	1	1	1	1	1
0	1	3	6	10	15	21	28	36	45	55
0	0	3	15	45	105	210	378	630	990
0	0	0	15	105	420	1260	3150	6930
0	0	0	0	105	945	4725	17325
0	0	0	0	0	945	10395
0	0	0	0	0	0
0	0	0	0	0
0	0	0	0
0	0	0
0	0
0

A144299 as an upper right triangle

1	1	1	1	1	1	1	1	1	1	1	1
	0	1	3	6	10	15	21	28	36	45	55
		0	0	3	15	45	105	210	378	630	990
			0	0	0	15	105	420	1260	3150	6930
				0	0	0	0	105	945	4725	17325
					0	0	0	0	0	945	10395
						0	0	0	0	0	0
							0	0	0	0	0
								0	0	0	0
									0	0	0
										0	0
											0