A219816 - OEIS

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A219816 as a triangular array

											3
										3		3
									6		6		6
								10		15		16		10
							15		28		62		33		15
						21		45		165		169		61		21
					28		66		377		648		414		106		28
				36		91		795		2179		2237		987		176		36
			45		120		1588		7049		11395		7689		2359		281		45
		55		153		3039		22017		57848		62341		27340		5569		433		55
	66		190

A219816 as a square array

3	3	6	10	15	21	28	36	45	55	66
3	6	15	28	45	66	91	120	153	190
6	16	62	165	377	795	1588	3039
10	33	169	648	2179	7049	22017
15	61	414	2237	11395	57848
21	106	987	7689	62341
28	176	2359	27340
36	281	5569
45	433
55

A219816 as an upper right triangle

3	3	6	10	15	21	28	36	45	55	66
	3	6	15	28	45	66	91	120	153	190
		6	16	62	165	377	795	1588	3039
			10	33	169	648	2179	7049	22017
				15	61	414	2237	11395	57848
					21	106	987	7689	62341
						28	176	2359	27340
							36	281	5569
								45	433
									55