A101819 - OEIS

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A101819 as a triangular array

1

2 6

3 42 36

4 180 600 240

5 620 5400 7800 1800

6 1890 36120 12600 100800 15120

7 5334 202860 1428840 2646000 1340640 141120

8 14280 1016400 13053600 46710720 53343360 18627840 1451520

9 36792 4702320

A101819 as a square array

`1`	`2`	`3`	`4`	`5`	`6`	`7`	`8`	`9`
`6`	`42`	`180`	`620`	`1890`	`5334`	`14280`	`36792`
`36`	`600`	`5400`	`36120`	`202860`	`1016400`	`4702320`
`240`	`7800`	`12600`	`1428840`	`13053600`
`1800`	`100800`	`2646000`	`46710720`
`15120`	`1340640`	`53343360`
`141120`	`18627840`
`1451520`

A101819 as an upper right triangle

`1`	`2`	`3`	`4`	`5`	`6`	`7`	`8`	`9`
	`6`	`42`	`180`	`620`	`1890`	`5334`	`14280`	`36792`
		`36`	`600`	`5400`	`36120`	`202860`	`1016400`	`4702320`
			`240`	`7800`	`12600`	`1428840`	`13053600`
				`1800`	`100800`	`2646000`	`46710720`
					`15120`	`1340640`	`53343360`
						`141120`	`18627840`
							`1451520`

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Last modified September 16 15:55 EDT 2024. Contains 375976 sequences. (Running on oeis4.)