A144417 - OEIS

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A144417 as a triangular array

												1
											1		0
										1		1		0
									1		3		1		0
								1		6		7		0		0
							1		10		25		10		0		0
						1		15		65		75		10		0		0
					1		21		140		315		175		0		0		0
				1		28		266		980		1225		280		0		0		0
			1		36		462		2520		5565		3780		280		0		0		0
		1		45		750		5670		19425		26145		9100		0		0		0		0
	1		55

A144417 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	1	7	25	65	140	266	462	750
0	0	10	75	315	980	2520	5670
0	0	10	175	1225	5565	19425
0	0	0	280	3780	26145
0	0	0	280	9100
0	0	0	0
0	0	0
0	0
0

A144417 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	1	7	25	65	140	266	462	750
			0	0	10	75	315	980	2520	5670
				0	0	10	175	1225	5565	19425
					0	0	0	280	3780	26145
						0	0	0	280	9100
							0	0	0	0
								0	0	0
									0	0
										0