A230899 - OEIS

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A230899 as a triangular array

											0
										0		0
									0		2		0
								0		2		2		0
							0		10		14		10		0
						0		22		34		34		22		0
					0		70		198		388		198		70		0
				0		186		810		2722		2722		810		186		0
			0		538		3706		23884		40762		23884		3706		538		0
		0		1494		16918		190364		579218		579218		190364		16918		1494		0
	0		4230		76318

A230899 as a square array

0	0	0	0	0	0	0	0	0	0	0
0	2	2	10	22	70	186	538	1494	4230
0	2	14	34	198	810	3706	16918	76318
0	10	34	388	2722	23884	190364
0	22	198	2722	40762	579218
0	70	810	23884	579218
0	186	3706	190364
0	538	16918
0	1494
0

A230899 as an upper right triangle

0	0	0	0	0	0	0	0	0	0	0
	0	2	2	10	22	70	186	538	1494	4230
		0	2	14	34	198	810	3706	16918	76318
			0	10	34	388	2722	23884	190364
				0	22	198	2722	40762	579218
					0	70	810	23884	579218
						0	186	3706	190364
							0	538	16918
								0	1494
									0