A238801 - OEIS

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A238801 as a triangular array

												1
											2		0
										3		0		1
									4		0		4		0
								5		0		10		0		1
							6		0		20		0		6		0
						7		0		35		0		21		0		1
					8		0		56		0		56		0		8		0
				9		0		84		0		126		0		36		0		1
			10		0		120		0		252		0		120		0		10		0
		11		0		165		0		462		0		330		0		55		0		1
	12		0		220		0		792		0		792		0		220		0		12		0

A238801 as a square array

1	2	3	4	5	6	7	8	9	10	11	12
0	0	0	0	0	0	0	0	0	0	0
1	4	10	20	35	56	84	120	165	220
0	0	0	0	0	0	0	0	0
1	6	21	56	126	252	462	792
0	0	0	0	0	0	0
1	8	36	120	330	792
0	0	0	0	0
1	10	55	220
0	0	0
1	12
0

A238801 as an upper right triangle

1	2	3	4	5	6	7	8	9	10	11	12
	0	0	0	0	0	0	0	0	0	0	0
		1	4	10	20	35	56	84	120	165	220
			0	0	0	0	0	0	0	0	0
				1	6	21	56	126	252	462	792
					0	0	0	0	0	0	0
						1	8	36	120	330	792
							0	0	0	0	0
								1	10	55	220
									0	0	0
										1	12
											0