A268261 - OEIS

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A268261 as a triangular array

										3
									7		5
								13		17		9
							21		43		42		17
						31		89		143		106		33
					43		161		378		479		273		65
				57		265		837		1610		1616		717		129
			73		407		1634		4357		6877		5492		1918		257
		91		593		2907		10082		22710		29461		18804		5218		513
	111		829		4818		20771		62249		118530		126591

A268261 as a square array

3	7	13	21	31	43	57	73	91	111
5	17	43	89	161	265	407	593	829
9	42	143	378	837	1634	2907	4818
17	106	479	1610	4357	10082	20771
33	273	1616	6877	22710	62249
65	717	5492	29461	118530
129	1918	18804	126591
257	5218
513

A268261 as an upper right triangle

3	7	13	21	31	43	57	73	91	111
	5	17	43	89	161	265	407	593	829
		9	42	143	378	837	1634	2907	4818
			17	106	479	1610	4357	10082	20771
				33	273	1616	6877	22710	62249
					65	717	5492	29461	118530
						129	1918	18804	126591
							257	5218
								513