A105438 - OEIS

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A105438 as a triangular array

										1
									2		1
								3		2		1
							4		4		2		1
						5		6		5		2		1
					6		9		8		6		2		1
				7		12		14		10		7		2		1
			8		16		20		20		12		8		2		1
		9		20		30		30		27		14		9		2		1
	10		25		40		50		42		35		16		10		2		1
11		30		55		70		77		56		44		18		11		2		1

A105438 as a square array

1	2	3	4	5	6	7	8	9	10	11
1	2	4	6	9	12	16	20	25	30
1	2	5	8	14	20	30	40	55
1	2	6	10	20	30	50	70
1	2	7	12	27	42	77
1	2	8	14	35	56
1	2	9	16	44
1	2	10	18
1	2	11
1	2
1

A105438 as an upper right triangle

1	2	3	4	5	6	7	8	9	10	11
	1	2	4	6	9	12	16	20	25	30
		1	2	5	8	14	20	30	40	55
			1	2	6	10	20	30	50	70
				1	2	7	12	27	42	77
					1	2	8	14	35	56
						1	2	9	16	44
							1	2	10	18
								1	2	11
									1	2
										1

										1
									2		1
								3		2		1
							4		4		2		1
						5		6		5		2		1
					6		9		8		6		2		1
				7		12		14		10		7		2		1
			8		16		20		20		12		8		2		1
		9		20		30		30		27		14		9		2		1
	10		25		40		50		42		35		16		10		2		1
11		30		55		70		77		56		44		18		11		2		1

1	2	3	4	5	6	7	8	9	10	11
1	2	4	6	9	12	16	20	25	30
1	2	5	8	14	20	30	40	55
1	2	6	10	20	30	50	70
1	2	7	12	27	42	77
1	2	8	14	35	56
1	2	9	16	44
1	2	10	18
1	2	11
1	2
1

1	2	3	4	5	6	7	8	9	10	11
	1	2	4	6	9	12	16	20	25	30
		1	2	5	8	14	20	30	40	55
			1	2	6	10	20	30	50	70
				1	2	7	12	27	42	77
					1	2	8	14	35	56
						1	2	9	16	44
							1	2	10	18
								1	2	11
									1	2
										1

										1
									2		1
								3		2		1
							4		4		2		1
						5		6		5		2		1
					6		9		8		6		2		1
				7		12		14		10		7		2		1
			8		16		20		20		12		8		2		1
		9		20		30		30		27		14		9		2		1
	10		25		40		50		42		35		16		10		2		1
11		30		55		70		77		56		44		18		11		2		1

1	2	3	4	5	6	7	8	9	10	11
1	2	4	6	9	12	16	20	25	30
1	2	5	8	14	20	30	40	55
1	2	6	10	20	30	50	70
1	2	7	12	27	42	77
1	2	8	14	35	56
1	2	9	16	44
1	2	10	18
1	2	11
1	2
1

1	2	3	4	5	6	7	8	9	10	11
	1	2	4	6	9	12	16	20	25	30
		1	2	5	8	14	20	30	40	55
			1	2	6	10	20	30	50	70
				1	2	7	12	27	42	77
					1	2	8	14	35	56
						1	2	9	16	44
							1	2	10	18
								1	2	11
									1	2
										1

										1
									2		1
								3		2		1
							4		4		2		1
						5		6		5		2		1
					6		9		8		6		2		1
				7		12		14		10		7		2		1
			8		16		20		20		12		8		2		1
		9		20		30		30		27		14		9		2		1
	10		25		40		50		42		35		16		10		2		1
11		30		55		70		77		56		44		18		11		2		1

1	2	3	4	5	6	7	8	9	10	11
1	2	4	6	9	12	16	20	25	30
1	2	5	8	14	20	30	40	55
1	2	6	10	20	30	50	70
1	2	7	12	27	42	77
1	2	8	14	35	56
1	2	9	16	44
1	2	10	18
1	2	11
1	2
1

1	2	3	4	5	6	7	8	9	10	11
	1	2	4	6	9	12	16	20	25	30
		1	2	5	8	14	20	30	40	55
			1	2	6	10	20	30	50	70
				1	2	7	12	27	42	77
					1	2	8	14	35	56
						1	2	9	16	44
							1	2	10	18
								1	2	11
									1	2
										1