A207453 - OEIS

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A207453 as a triangular array

										2
									4		4
								6		16		6
							10		36		36		8
						16		100		90		64		10
					26		256		330		168		100		12
				42		676		1008		760		270		144		14
			68		1764		3354		2560		1450		396		196		16
		110		4624		10710		10088		5200		2460		546		256		18
	178		12100		34884		36456		23530		9216		3850		720

A207453 as a square array

2	4	6	10	16	26	42	68	110	178
4	16	36	100	256	676	1764	4624	12100
6	36	90	330	1008	3354	10710	34884
8	64	168	760	2560	10088	36456
10	100	270	1450	5200	23530
12	144	396	2460	9216
14	196	546	3850
16	256	720
18

A207453 as an upper right triangle

2	4	6	10	16	26	42	68	110	178
	4	16	36	100	256	676	1764	4624	12100
		6	36	90	330	1008	3354	10710	34884
			8	64	168	760	2560	10088	36456
				10	100	270	1450	5200	23530
					12	144	396	2460	9216
						14	196	546	3850
							16	256	720
								18