A203022 - OEIS

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A203022 as a triangular array

								0
							1		1
						2		8		2
					4		36		36		4
				12		544		3216		544		12
			44		12700		257664		257664		12700		44
		176		431432		69822004		464458656		69822004		431432		176
	768		17482140

A203022 as a square array

0	1	2	4	12	44	176	768
1	8	36	544	12700	431432	17482140
2	36	3216	257664	69822004
4	544	257664	464458656
12	12700	69822004
44	431432
176

A203022 as an upper right triangle

0	1	2	4	12	44	176	768
	1	8	36	544	12700	431432	17482140
		2	36	3216	257664	69822004
			4	544	257664	464458656
				12	12700	69822004
					44	431432
						176