A080851 - OEIS

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A080851 as a triangular array

												1
											1		3
										1		4		6
									1		5		10		10
								1		6		14		20		15
							1		7		18		30		35		21
						1		8		22		40		55		56		28
					1		9		26		50		75		91		84		36
				1		10		30		60		95		126		140		120		45
			1		11		34		70		115		161		196		204		165		55
		1		12		38		80		135		196		252		288		285		220		66
	1		13		42		90		155		231		308		372		405		385		286		78

A080851 as a square array

1	1	1	1	1	1	1	1	1	1	1	1
3	4	5	6	7	8	9	10	11	12	13
6	10	14	18	22	26	30	34	38	42
10	20	30	40	50	60	70	80	90
15	35	55	75	95	115	135	155
21	56	91	126	161	196	231
28	84	140	196	252	308
36	120	204	288	372
45	165	285	405
55	220	385
66	286
78

A080851 as an upper right triangle

1	1	1	1	1	1	1	1	1	1	1	1
	3	4	5	6	7	8	9	10	11	12	13
		6	10	14	18	22	26	30	34	38	42
			10	20	30	40	50	60	70	80	90
				15	35	55	75	95	115	135	155
					21	56	91	126	161	196	231
						28	84	140	196	252	308
							36	120	204	288	372
								45	165	285	405
									55	220	385
										66	286
											78