A291909 - OEIS

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A291909 as a triangular array

0

0 1

0 9 6

0 36 96 72

0 100 600 1800 1440

0 225 2400 16200 51840 43200

0 441 7350 88200 635040 2116800 1814400

0 784 18816 352800 4515840 33868800 116121600 101606400

0 1296 42336 1143072 22861440 304819200 2351462400 8230118400 7315660800

A291909 as a square array

`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`
`1`	`9`	`36`	`100`	`225`	`441`	`784`	`1296`
`6`	`96`	`600`	`2400`	`7350`	`18816`	`42336`
`72`	`1800`	`16200`	`88200`	`352800`	`1143072`
`1440`	`51840`	`635040`	`4515840`	`22861440`
`43200`	`2116800`	`33868800`	`304819200`
`1814400`	`116121600`	`2351462400`
`101606400`	`8230118400`
`7315660800`

A291909 as an upper right triangle

`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`
	`1`	`9`	`36`	`100`	`225`	`441`	`784`	`1296`
		`6`	`96`	`600`	`2400`	`7350`	`18816`	`42336`
			`72`	`1800`	`16200`	`88200`	`352800`	`1143072`
				`1440`	`51840`	`635040`	`4515840`	`22861440`
					`43200`	`2116800`	`33868800`	`304819200`
						`1814400`	`116121600`	`2351462400`
							`101606400`	`8230118400`
								`7315660800`

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Last modified April 19 16:03 EDT 2024. Contains 371794 sequences. (Running on oeis4.)