A355474 - OEIS

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A355474 as a triangular array

												1
											2		1
										3		2		1
									4		4		2		1
								5		5		4		2		1
							6		7		6		4		2		1
						7		8		9		6		4		2		1
					8		10		10		10		6		4		2		1
				9		11		13		11		10		6		4		2		1
			10		13		15		15		12		10		6		4		2		1
		11		14		17		17		17		12		10		6		4		2		1
	12		16		19		20		20		18		12		10		6		4		2		1

A355474 as a square array

1	2	3	4	5	6	7	8	9	10	11	12
1	2	4	5	7	8	10	11	13	14	16
1	2	4	6	9	10	13	15	17	19
1	2	4	6	10	11	15	17	20
1	2	4	6	10	12	17	20
1	2	4	6	10	12	18
1	2	4	6	10	12
1	2	4	6	10
1	2	4	6
1	2	4
1	2
1

A355474 as an upper right triangle

1	2	3	4	5	6	7	8	9	10	11	12
	1	2	4	5	7	8	10	11	13	14	16
		1	2	4	6	9	10	13	15	17	19
			1	2	4	6	10	11	15	17	20
				1	2	4	6	10	12	17	20
					1	2	4	6	10	12	18
						1	2	4	6	10	12
							1	2	4	6	10
								1	2	4	6
									1	2	4
										1	2
											1