A208118 - OEIS

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A208118 as a triangular array

										2
									4		4
								6		16		6
							9		36		36		9
						15		81		90		81		12
					25		225		225		225		144		16
				40		625		825		625		420		256		20
			64		1600		3025		3025		1225		784		400		25
		104		4096		9240		14641		7315		2401		1260		625		30
	169		10816		28224		53361		43681		17689		3969		2025		900

A208118 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	90	225	825	3025	9240	28224
9	81	225	625	3025	14641	53361
12	144	420	1225	7315	43681
16	256	784	2401	17689
20	400	1260	3969
25	625	2025
30	900

A208118 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	90	225	825	3025	9240	28224
			9	81	225	625	3025	14641	53361
				12	144	420	1225	7315	43681
					16	256	784	2401	17689
						20	400	1260	3969
							25	625	2025
								30	900