A207305 - OEIS

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A207305 as a triangular array

											2
										4		4
									6		16		6
								9		36		36		8
							13		81		98		64		10
						19		169		271		200		100		12
					28		361		665		643		350		144		14
				41		784		1675		1759		1271		556		196		16
			60		1681		4344		4939		3773		2239		826		256		18
		88		3600		11081		14446		11497		7093		3641		1168		324		20
	129

A207305 as a square array

2	4	6	9	13	19	28	41	60	88	129
4	16	36	81	169	361	784	1681	3600
6	36	98	271	665	1675	4344	11081
8	64	200	643	1759	4939	14446
10	100	350	1271	3773	11497
12	144	556	2239	7093
14	196	826	3641
16	256	1168
18	324
20

A207305 as an upper right triangle

2	4	6	9	13	19	28	41	60	88	129
	4	16	36	81	169	361	784	1681	3600
		6	36	98	271	665	1675	4344	11081
			8	64	200	643	1759	4939	14446
				10	100	350	1271	3773	11497
					12	144	556	2239	7093
						14	196	826	3641
							16	256	1168
								18	324
									20