A064319 - OEIS

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A064319 as a triangular array

1

2 2

3 6 12

4 12 72 864

5 20 240 17280 14929920

6 30 600 144000 2488320000 37150418534400000

7 42 1260 756000 108864000000 270888468480000000000 10063619980174622195712000000000000000

8 56

A064319 as a square array

`1`	`2`	`3`	`4`	`5`	`6`	`7`	`8`
`2`	`6`	`12`	`20`	`30`	`42`	`56`
`12`	`72`	`240`	`600`	`1260`
`864`	`17280`	`144000`	`756000`
`14929920`	`2488320000`	`108864000000`
`37150418534400000`	`270888468480000000000`
`10063619980174622195712000000000000000`

A064319 as an upper right triangle

`1`	`2`	`3`	`4`	`5`	`6`	`7`	`8`
	`2`	`6`	`12`	`20`	`30`	`42`	`56`
		`12`	`72`	`240`	`600`	`1260`
			`864`	`17280`	`144000`	`756000`
				`14929920`	`2488320000`	`108864000000`
					`37150418534400000`	`270888468480000000000`
						`10063619980174622195712000000000000000`

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Last modified May 29 00:29 EDT 2024. Contains 372921 sequences. (Running on oeis4.)