A163361 - OEIS

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A163361 as a triangular array

												1
											2		4
										15		3		5
									16		14		8		6
								17		13		9		7		59
							20		18		12		10		58		60
						21		19		31		11		55		57		61
					22		24		30		32		54		56		62		64
				235		23		25		29		33		53		51		63		65
			236		234		26		28		36		34		52		50		68		66
		237		233		231		27		37		35		47		49		69		67		79
	240		238		232

A163361 as a square array

1	2	15	16	17	20	21	22	235	236	237	240
4	3	14	13	18	19	24	23	234	233	238
5	8	9	12	31	30	25	26	231	232
6	7	10	11	32	29	28	27
59	58	55	54	33	36	37
60	57	56	53	34	35
61	62	51	52	47
64	63	50	49
65	68	69
66	67
79

A163361 as an upper right triangle

1	2	15	16	17	20	21	22	235	236	237	240
	4	3	14	13	18	19	24	23	234	233	238
		5	8	9	12	31	30	25	26	231	232
			6	7	10	11	32	29	28	27
				59	58	55	54	33	36	37
					60	57	56	53	34	35
						61	62	51	52	47
							64	63	50	49
								65	68	69
									66	67
										79