A286108 - OEIS

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A286108 as a triangular array

													0
												1		1
											3		5		3
										6		6		6		6
									10		12		14		12		10
								15		15		19		19		15		15
							21		23		21		27		21		23		21
						28		28		28		28		28		28		28		28
					36		38		40		38		44		38		40		38		36
				45		45		49		49		53		53		49		49		45		45
			55		57		55		61		63		65		63		61		55		57		55
		66		66		66		66		74		74		74		74		66		66		66		66
	78		80		82		80		78		88		90		88		78		80		82		80		78

A286108 as a square array

0	1	3	6	10	15	21	28	36	45	55	66	78
1	5	6	12	15	23	28	38	45	57	66	80
3	6	14	19	21	28	40	49	55	66	82
6	12	19	27	28	38	49	61	66	80
10	15	21	28	44	53	63	74	78
15	23	28	38	53	65	74	88
21	28	40	49	63	74	90
28	38	49	61	74	88
36	45	55	66	78
45	57	66	80
55	66	82
66	80
78

A286108 as an upper right triangle

0	1	3	6	10	15	21	28	36	45	55	66	78
	1	5	6	12	15	23	28	38	45	57	66	80
		3	6	14	19	21	28	40	49	55	66	82
			6	12	19	27	28	38	49	61	66	80
				10	15	21	28	44	53	63	74	78
					15	23	28	38	53	65	74	88
						21	28	40	49	63	74	90
							28	38	49	61	74	88
								36	45	55	66	78
									45	57	66	80
										55	66	82
											66	80
												78