A207717 - OEIS

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A207717 as a triangular array

									2
								4		4
							6		16		6
						10		36		36		9
					16		100		114		81		14
				26		256		450		387		196		22
			42		676		1644		2205		1414		484		35
		68		1764		6186		12015		11970		5302		1225		56
	110		4624		23010		66339		97580		66946		20265		3136		90
178		12100		85992		364869		805154

A207717 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	114	450	1644	6186	23010	85992
9	81	387	2205	12015	66339	364869
14	196	1414	11970	97580	805154
22	484	5302	66946
35	1225	20265
56	3136
90

A207717 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	114	450	1644	6186	23010	85992
			9	81	387	2205	12015	66339	364869
				14	196	1414	11970	97580	805154
					22	484	5302	66946
						35	1225	20265
							56	3136
								90