A129994 - OEIS

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A129994 as a triangular array

									1
								2		1
							2		4		1
						2		6		6		1
					2		8		12		8		1
				2		10		20		20		10		1
			2		12		30		40		30		12		1
		2		14		42		70		70		42		14		1
	2		16		56		112		140		112		56		16		1
2		18		72		168		252		252		168		72		18		1

A129994 as a square array

1	2	2	2	2	2	2	2	2	2
1	4	6	8	10	12	14	16	18
1	6	12	20	30	42	56	72
1	8	20	40	70	112	168
1	10	30	70	140	252
1	12	42	112	252
1	14	56	168
1	16	72
1	18
1

A129994 as an upper right triangle

1	2	2	2	2	2	2	2	2	2
	1	4	6	8	10	12	14	16	18
		1	6	12	20	30	42	56	72
			1	8	20	40	70	112	168
				1	10	30	70	140	252
					1	12	42	112	252
						1	14	56	168
							1	16	72
								1	18
									1

									1
								2		1
							2		4		1
						2		6		6		1
					2		8		12		8		1
				2		10		20		20		10		1
			2		12		30		40		30		12		1
		2		14		42		70		70		42		14		1
	2		16		56		112		140		112		56		16		1
2		18		72		168		252		252		168		72		18		1

1	2	2	2	2	2	2	2	2	2
1	4	6	8	10	12	14	16	18
1	6	12	20	30	42	56	72
1	8	20	40	70	112	168
1	10	30	70	140	252
1	12	42	112	252
1	14	56	168
1	16	72
1	18
1

1	2	2	2	2	2	2	2	2	2
	1	4	6	8	10	12	14	16	18
		1	6	12	20	30	42	56	72
			1	8	20	40	70	112	168
				1	10	30	70	140	252
					1	12	42	112	252
						1	14	56	168
							1	16	72
								1	18
									1

									1
								2		1
							2		4		1
						2		6		6		1
					2		8		12		8		1
				2		10		20		20		10		1
			2		12		30		40		30		12		1
		2		14		42		70		70		42		14		1
	2		16		56		112		140		112		56		16		1
2		18		72		168		252		252		168		72		18		1

1	2	2	2	2	2	2	2	2	2
1	4	6	8	10	12	14	16	18
1	6	12	20	30	42	56	72
1	8	20	40	70	112	168
1	10	30	70	140	252
1	12	42	112	252
1	14	56	168
1	16	72
1	18
1

1	2	2	2	2	2	2	2	2	2
	1	4	6	8	10	12	14	16	18
		1	6	12	20	30	42	56	72
			1	8	20	40	70	112	168
				1	10	30	70	140	252
					1	12	42	112	252
						1	14	56	168
							1	16	72
								1	18
									1

									1
								2		1
							2		4		1
						2		6		6		1
					2		8		12		8		1
				2		10		20		20		10		1
			2		12		30		40		30		12		1
		2		14		42		70		70		42		14		1
	2		16		56		112		140		112		56		16		1
2		18		72		168		252		252		168		72		18		1

1	2	2	2	2	2	2	2	2	2
1	4	6	8	10	12	14	16	18
1	6	12	20	30	42	56	72
1	8	20	40	70	112	168
1	10	30	70	140	252
1	12	42	112	252
1	14	56	168
1	16	72
1	18
1

1	2	2	2	2	2	2	2	2	2
	1	4	6	8	10	12	14	16	18
		1	6	12	20	30	42	56	72
			1	8	20	40	70	112	168
				1	10	30	70	140	252
					1	12	42	112	252
						1	14	56	168
							1	16	72
								1	18
									1