A268204 - OEIS

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A268204 as a triangular array

								2
							9		4
						60		81		6
					570		3600		576		9
				6960		324900		178068		3969		12
			104006		48441600		157322070		8459154		25281		16
		1837752		10817248036		292870561470		73055876226		376812420		155236		20
	37478718		3377332413504		994136348047368

A268204 as a square array

2	9	60	570	6960	104006	1837752	37478718
4	81	3600	324900	48441600	10817248036	3377332413504
6	576	178068	157322070	292870561470	994136348047368
9	3969	8459154	73055876226
12	25281	376812420
16	155236
20

A268204 as an upper right triangle

2	9	60	570	6960	104006	1837752	37478718
	4	81	3600	324900	48441600	10817248036	3377332413504
		6	576	178068	157322070	292870561470	994136348047368
			9	3969	8459154	73055876226
				12	25281	376812420
					16	155236
						20