A075302 - OEIS

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A075302 as a triangular array

											0
										2		1
									4		5		3
								6		9		11		7
							8		13		19		23		15
						10		17		27		39		47		31
					12		21		35		55		79		95		63
				14		25		43		71		111		159		191		127
			16		29		51		87		143		223		319		383		255
		18		33		59		103		175		287		447		639		767		511
	20		37		67		119		207		351		575		895		1279

A075302 as a square array

0	2	4	6	8	10	12	14	16	18	20
1	5	9	13	17	21	25	29	33	37
3	11	19	27	35	43	51	59	67
7	23	39	55	71	87	103	119
15	47	79	111	143	175	207
31	95	159	223	287	351
63	191	319	447	575
127	383	639	895
255	767	1279
511

A075302 as an upper right triangle

0	2	4	6	8	10	12	14	16	18	20
	1	5	9	13	17	21	25	29	33	37
		3	11	19	27	35	43	51	59	67
			7	23	39	55	71	87	103	119
				15	47	79	111	143	175	207
					31	95	159	223	287	351
						63	191	319	447	575
							127	383	639	895
								255	767	1279
									511