A157497 - OEIS

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A157497 as a triangular array

												1
											1		2
										1		0		3
									1		4		0		4
								1		0		0		0		5
							1		6		9		0		0		6
						1		0		0		0		0		0		7
					1		8		0		16		0		0		0		8
				1		0		18		0		0		0		0		0		9
			1		10		0		0		25		0		0		0		0		10
		1		0		0		0		0		0		0		0		0		0		11
	1		12		30		40		0		36		0		0		0		0		0		12

A157497 as a square array

1	1	1	1	1	1	1	1	1	1	1	1
2	0	4	0	6	0	8	0	10	0	12
3	0	0	9	0	0	18	0	0	30
4	0	0	0	16	0	0	0	40
5	0	0	0	0	25	0	0
6	0	0	0	0	0	36
7	0	0	0	0	0
8	0	0	0	0
9	0	0	0
10	0	0
11	0
12

A157497 as an upper right triangle

1	1	1	1	1	1	1	1	1	1	1	1
	2	0	4	0	6	0	8	0	10	0	12
		3	0	0	9	0	0	18	0	0	30
			4	0	0	0	16	0	0	0	40
				5	0	0	0	0	25	0	0
					6	0	0	0	0	0	36
						7	0	0	0	0	0
							8	0	0	0	0
								9	0	0	0
									10	0	0
										11	0
											12