A212267 - OEIS

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A212267 as a triangular array

1

1 2

1 4 16

1 6 72 272

1 8 168 2896 7936

1 10 304 10672 203904 353792

1 12 480 26400 1198080 22112000 22368256

1 14 696 52880 4071040 208521728 3412366336 1903757312

1 16 952 92912 10373760 976629760 51874413568 709998153728 209865342976

A212267 as a square array

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
`2`	`4`	`6`	`8`	`10`	`12`	`14`	`16`
`16`	`72`	`168`	`304`	`480`	`696`	`952`
`272`	`2896`	`10672`	`26400`	`52880`	`92912`
`7936`	`203904`	`1198080`	`4071040`	`10373760`
`353792`	`22112000`	`208521728`	`976629760`
`22368256`	`3412366336`	`51874413568`
`1903757312`	`709998153728`
`209865342976`

A212267 as an upper right triangle

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
	`2`	`4`	`6`	`8`	`10`	`12`	`14`	`16`
		`16`	`72`	`168`	`304`	`480`	`696`	`952`
			`272`	`2896`	`10672`	`26400`	`52880`	`92912`
				`7936`	`203904`	`1198080`	`4071040`	`10373760`
					`353792`	`22112000`	`208521728`	`976629760`
						`22368256`	`3412366336`	`51874413568`
							`1903757312`	`709998153728`
								`209865342976`

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Last modified April 24 02:46 EDT 2024. Contains 371917 sequences. (Running on oeis4.)