A230910 - OEIS

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A230910 as a triangular array

											0
										0		0
									0		2		0
								0		8		8		0
							0		26		38		26		0
						0		84		152		152		84		0
					0		272		634		802		634		272		0
				0		882		2676		4308		4308		2676		882		0
			0		2862		11324		23614		30304		23614		11324		2862		0
		0		9290		47954		130178		219696		219696		130178		47954		9290		0
	0

A230910 as a square array

0	0	0	0	0	0	0	0	0	0	0
0	2	8	26	84	272	882	2862	9290
0	8	38	152	634	2676	11324	47954
0	26	152	802	4308	23614	130178
0	84	634	4308	30304	219696
0	272	2676	23614	219696
0	882	11324	130178
0	2862	47954
0	9290
0

A230910 as an upper right triangle

0	0	0	0	0	0	0	0	0	0	0
	0	2	8	26	84	272	882	2862	9290
		0	8	38	152	634	2676	11324	47954
			0	26	152	802	4308	23614	130178
				0	84	634	4308	30304	219696
					0	272	2676	23614	219696
						0	882	11324	130178
							0	2862	47954
								0	9290
									0