A168140 - OEIS

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A168140 as a triangular array

												2
											3		3
										7		4		7
									1		7		7		1
								29		31		17		31		29
							1		29		16		16		29		1
						43		41		104		113		104		41		43
					1		43		20		109		109		20		43		1
				29		31		104		101		113		101		104		31		29
			1		29		16		97		109		109		97		16		29		1
		71		61		172		169		1039		263		1039		169		172		61		71
	1		71		28		197		137		247		247		137		197		28		71		1

A168140 as a square array

2	3	7	1	29	1	43	1	29	1	71	1
3	4	7	31	29	41	43	31	29	61	71
7	7	17	16	104	20	104	16	172	28
1	31	16	113	109	101	97	169	197
29	29	104	109	113	109	1039	137
1	41	20	101	109	263	247
43	43	104	97	1039	247
1	31	16	169	137
29	29	172	197
1	61	28
71	71
1

A168140 as an upper right triangle

2	3	7	1	29	1	43	1	29	1	71	1
	3	4	7	31	29	41	43	31	29	61	71
		7	7	17	16	104	20	104	16	172	28
			1	31	16	113	109	101	97	169	197
				29	29	104	109	113	109	1039	137
					1	41	20	101	109	263	247
						43	43	104	97	1039	247
							1	31	16	169	137
								29	29	172	197
									1	61	28
										71	71
											1