A143528 - OEIS

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A143528 as a triangular array

										1
									2		3
								7		4		5
							12		9		6		8
						41		14		11		13		10
					70		19		16		18		15		17
				239		24		21		23		20		22		29
			408		53		26		28		25		27		34		46
		1393		82		31		33		30		32		39		51		58
	2378		111		36		38		35		37		44		56		63		75
8119		140		65		43		40		42		49		61		68		80

A143528 as a square array

1	2	7	12	41	70	239	408	1393	2378	8119
3	4	9	14	19	24	53	82	111	140
5	6	11	16	21	26	31	36	65
8	13	18	23	28	33	38	43
10	15	20	25	30	35	40
17	22	27	32	37	42
29	34	39	44	49
46	51	56	61
58	63	68
75	80

A143528 as an upper right triangle

1	2	7	12	41	70	239	408	1393	2378	8119
	3	4	9	14	19	24	53	82	111	140
		5	6	11	16	21	26	31	36	65
			8	13	18	23	28	33	38	43
				10	15	20	25	30	35	40
					17	22	27	32	37	42
						29	34	39	44	49
							46	51	56	61
								58	63	68
									75	80