A097287 - OEIS

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A097287 as a triangular array

												0
											1		2
										3		0		6
									7		5		4		12
								13		9		0		8		20
							21		15		11		10		14		30
						31		23		17		0		16		22		42
					43		33		25		19		18		24		32		56
				57		45		35		27		0		26		34		44		72
			73		59		47		37		29		28		36		46		58		90
		91		75		61		49		39		0		38		48		60		74		110
	111		93		77		63		51		41		40		50		62

A097287 as a square array

0	1	3	7	13	21	31	43	57	73	91	111
2	0	5	9	15	23	33	45	59	75	93
6	4	0	11	17	25	35	47	61	77
12	8	10	0	19	27	37	49	63
20	14	16	18	0	29	39	51
30	22	24	26	28	0	41
42	32	34	36	38	40
56	44	46	48	50
72	58	60	62
90	74
110

A097287 as an upper right triangle

0	1	3	7	13	21	31	43	57	73	91	111
	2	0	5	9	15	23	33	45	59	75	93
		6	4	0	11	17	25	35	47	61	77
			12	8	10	0	19	27	37	49	63
				20	14	16	18	0	29	39	51
					30	22	24	26	28	0	41
						42	32	34	36	38	40
							56	44	46	48	50
								72	58	60	62
									90	74
										110