A281888 - OEIS

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A281888 as a triangular array

										0
									0		0
								0		0		0
							0		0		0		0
						0		0		68		0		0
					0		0		638		638		0		0
				0		0		4832		9284		4832		0		0
			0		0		35002		112320		112320		35002		0		0
		0		0		241209		1282388		2156646		1282388		241209		0		0
	0		0		1612568		13907664		38763782		38763782		13907664		1612568		0		0

A281888 as a square array

0	0	0	0	0	0	0	0	0	0
0	0	0	0	0	0	0	0	0
0	0	68	638	4832	35002	241209	1612568
0	0	638	9284	112320	1282388	13907664
0	0	4832	112320	2156646	38763782
0	0	35002	1282388	38763782
0	0	241209	13907664
0	0	1612568
0	0
0

A281888 as an upper right triangle

0	0	0	0	0	0	0	0	0	0
	0	0	0	0	0	0	0	0	0
		0	0	68	638	4832	35002	241209	1612568
			0	0	638	9284	112320	1282388	13907664
				0	0	4832	112320	2156646	38763782
					0	0	35002	1282388	38763782
						0	0	241209	13907664
							0	0	1612568
								0	0
									0