A128570 - OEIS

login

The OEIS is supported by the many generous donors to the OEIS Foundation.

A128570 as a triangular array

1

1 1

1 2 4

1 3 12 28

1 4 24 114 276

1 5 40 288 1440 3480

1 6 60 580 4440 22368 53232

1 7 84 1020 10560 82080 409248 955524

1 8 112 1638 21420 226560 1752000 8585088 19672320

1 9 144 2464 38976 523320 5532960 42178800 202733760 456803328

1 10 180 3528 65520 1068480 14399280 150570240 1127335680 5317663680 11810032896

1 11 220 4860 103680 1991808 32716992 437433780 4501422240 33073099200 153345634560 336463895808

A128570 as a square array

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
`1`	`2`	`3`	`4`	`5`	`6`	`7`	`8`	`9`	`10`	`11`
`4`	`12`	`24`	`40`	`60`	`84`	`112`	`144`	`180`	`220`
`28`	`114`	`288`	`580`	`1020`	`1638`	`2464`	`3528`	`4860`
`276`	`1440`	`4440`	`10560`	`21420`	`38976`	`65520`	`103680`
`3480`	`22368`	`82080`	`226560`	`523320`	`1068480`	`1991808`
`53232`	`409248`	`1752000`	`5532960`	`14399280`	`32716992`
`955524`	`8585088`	`42178800`	`150570240`	`437433780`
`19672320`	`202733760`	`1127335680`	`4501422240`
`456803328`	`5317663680`	`33073099200`
`11810032896`	`153345634560`
`336463895808`

A128570 as an upper right triangle

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
	`1`	`2`	`3`	`4`	`5`	`6`	`7`	`8`	`9`	`10`	`11`
		`4`	`12`	`24`	`40`	`60`	`84`	`112`	`144`	`180`	`220`
			`28`	`114`	`288`	`580`	`1020`	`1638`	`2464`	`3528`	`4860`
				`276`	`1440`	`4440`	`10560`	`21420`	`38976`	`65520`	`103680`
					`3480`	`22368`	`82080`	`226560`	`523320`	`1068480`	`1991808`
						`53232`	`409248`	`1752000`	`5532960`	`14399280`	`32716992`
							`955524`	`8585088`	`42178800`	`150570240`	`437433780`
								`19672320`	`202733760`	`1127335680`	`4501422240`
									`456803328`	`5317663680`	`33073099200`
										`11810032896`	`153345634560`
											`336463895808`

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified August 29 18:55 EDT 2024. Contains 375518 sequences. (Running on oeis4.)