A078812 - OEIS

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A078812 as a triangular array

											1
										2		1
									3		4		1
								4		10		6		1
							5		20		21		8		1
						6		35		56		36		10		1
					7		56		126		120		55		12		1
				8		84		252		330		220		78		14		1
			9		120		462		792		715		364		105		16		1
		10		165		792		1716		2002		1365		560		136		18		1
	11		220		1287		3432		5005		4368		2380		816		171		20		1

A078812 as a square array

1	2	3	4	5	6	7	8	9	10	11
1	4	10	20	35	56	84	120	165	220
1	6	21	56	126	252	462	792	1287
1	8	36	120	330	792	1716	3432
1	10	55	220	715	2002	5005
1	12	78	364	1365	4368
1	14	105	560	2380
1	16	136	816
1	18	171
1	20
1

A078812 as an upper right triangle

1	2	3	4	5	6	7	8	9	10	11
	1	4	10	20	35	56	84	120	165	220
		1	6	21	56	126	252	462	792	1287
			1	8	36	120	330	792	1716	3432
				1	10	55	220	715	2002	5005
					1	12	78	364	1365	4368
						1	14	105	560	2380
							1	16	136	816
								1	18	171
									1	20
										1