A207703 - OEIS

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A207703 as a triangular array

										2
									4		4
								6		16		6
							9		36		36		8
						15		81		102		64		10
					25		225		289		216		100		12
				40		625		1071		729		390		144		14
			64		1600		3969		3321		1521		636		196		16
		104		4096		13230		15129		8151		2809		966		256		18
	169		10816		44100		61254		43681		17225		4761		1392

A207703 as a square array

2	4	6	9	15	25	40	64	104	169
4	16	36	81	225	625	1600	4096	10816
6	36	102	289	1071	3969	13230	44100
8	64	216	729	3321	15129	61254
10	100	390	1521	8151	43681
12	144	636	2809	17225
14	196	966	4761
16	256	1392
18

A207703 as an upper right triangle

2	4	6	9	15	25	40	64	104	169
	4	16	36	81	225	625	1600	4096	10816
		6	36	102	289	1071	3969	13230	44100
			8	64	216	729	3321	15129	61254
				10	100	390	1521	8151	43681
					12	144	636	2809	17225
						14	196	966	4761
							16	256	1392
								18