A378200 - OEIS

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A378200 as a triangular array

													1
												5		2
											6		3		4
										12		9		14		7
									15		8		13		10		11
								23		20		25		18		27		16
							28		17		26		19		24		21		22
						38		35		40		33		42		31		44		29
					45		30		43		32		41		34		39		36		37
				57		54		59		52		61		50		63		48		65		46
			66		47		64		49		62		51		60		53		58		55		56
		80		77		82		75		84		73		86		71		88		69		90		67
	91		68		89		70		87		72		85		74		83		76		81		78

A378200 as a square array

1	5	6	12	15	23	28	38	45	57	66	80	91
2	3	9	8	20	17	35	30	54	47	77	68
4	14	13	25	26	40	43	59	64	82	89
7	10	18	19	33	32	52	49	75	70
11	27	24	42	41	61	62	84	87
16	21	31	34	50	51	73	72
22	44	39	63	60	86	85
29	36	48	53	71	74
37	65	58	88	83
46	55	69	76
56	90	81
67	78

A378200 as an upper right triangle

1	5	6	12	15	23	28	38	45	57	66	80	91
	2	3	9	8	20	17	35	30	54	47	77	68
		4	14	13	25	26	40	43	59	64	82	89
			7	10	18	19	33	32	52	49	75	70
				11	27	24	42	41	61	62	84	87
					16	21	31	34	50	51	73	72
						22	44	39	63	60	86	85
							29	36	48	53	71	74
								37	65	58	88	83
									46	55	69	76
										56	90	81
											67	78