A153821 - OEIS

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A153821 as a triangular array

									2
								5		5
							2		76		2
						2		438		438		2
					2		704		10908		704		2
				2		1126		103592		103592		1126		2
			2		1740		320142		3545032		320142		1740		2
		2		2582		794802		47373814		47373814		794802		2582		2
	2		3688		1757864		224887000		2051605292		224887000		1757864

A153821 as a square array

2	5	2	2	2	2	2	2	2
5	76	438	704	1126	1740	2582	3688
2	438	10908	103592	320142	794802	1757864
2	704	103592	3545032	47373814	224887000
2	1126	320142	47373814	2051605292
2	1740	794802	224887000
2	2582	1757864
2

A153821 as an upper right triangle

2	5	2	2	2	2	2	2	2
	5	76	438	704	1126	1740	2582	3688
		2	438	10908	103592	320142	794802	1757864
			2	704	103592	3545032	47373814	224887000
				2	1126	320142	47373814	2051605292
					2	1740	794802	224887000
						2	2582	1757864
							2