A064670 - OEIS

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A064670 as a triangular array

1

1 4

5 20 36

61 244 504 576

1385 5540 11916 17280 14400

50521 202084 442224 697536 792000 518400

2702765 10811060 23870196 39202560 50198400 47174400 25401600

199360981 797443924 1769923944

A064670 as a square array

`1`	`1`	`5`	`61`	`1385`	`50521`	`2702765`	`199360981`
`4`	`20`	`244`	`5540`	`202084`	`10811060`	`797443924`
`36`	`504`	`11916`	`442224`	`23870196`	`1769923944`
`576`	`17280`	`697536`	`39202560`
`14400`	`792000`	`50198400`
`518400`	`47174400`
`25401600`

A064670 as an upper right triangle

`1`	`1`	`5`	`61`	`1385`	`50521`	`2702765`	`199360981`
	`4`	`20`	`244`	`5540`	`202084`	`10811060`	`797443924`
		`36`	`504`	`11916`	`442224`	`23870196`	`1769923944`
			`576`	`17280`	`697536`	`39202560`
				`14400`	`792000`	`50198400`
					`518400`	`47174400`
						`25401600`

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Last modified April 25 11:34 EDT 2024. Contains 371967 sequences. (Running on oeis4.)