A335340 - OEIS

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A335340 as a triangular array

2

4 2

6 12 2

8 36 24 2

10 80 120 40 2

12 150 400 300 60 2

14 252 1050 1400 630 84 2

16 392 2352 4900 3920 1176 112 2

18 576 4704 14112 17640 9408 2016 144 2

20 810 8640 35280 63504 52920 20160 3240 180 2

A335340 as a square array

`2`	`4`	`6`	`8`	`10`	`12`	`14`	`16`	`18`	`20`
`2`	`12`	`36`	`80`	`150`	`252`	`392`	`576`	`810`
`2`	`24`	`120`	`400`	`1050`	`2352`	`4704`	`8640`
`2`	`40`	`300`	`1400`	`4900`	`14112`	`35280`
`2`	`60`	`630`	`3920`	`17640`	`63504`
`2`	`84`	`1176`	`9408`	`52920`
`2`	`112`	`2016`	`20160`
`2`	`144`	`3240`
`2`	`180`
`2`

A335340 as an upper right triangle

`2`	`4`	`6`	`8`	`10`	`12`	`14`	`16`	`18`	`20`
	`2`	`12`	`36`	`80`	`150`	`252`	`392`	`576`	`810`
		`2`	`24`	`120`	`400`	`1050`	`2352`	`4704`	`8640`
			`2`	`40`	`300`	`1400`	`4900`	`14112`	`35280`
				`2`	`60`	`630`	`3920`	`17640`	`63504`
					`2`	`84`	`1176`	`9408`	`52920`
						`2`	`112`	`2016`	`20160`
							`2`	`144`	`3240`
								`2`	`180`
									`2`

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Last modified June 7 12:23 EDT 2023. Contains 363157 sequences. (Running on oeis4.)