A168619 - OEIS

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A168619 as a triangular array

1

1 1

1 4 1

1 12 12 1

1 24 36 24 1

1 40 80 80 40 1

1 60 150 200 150 60 1

1 84 252 420 420 252 84 1

1 112 392 784 980 784 392 112 1

1 144 576 1344 2016 2016 1344 576 144 1

1 180 810 2160 3780 4536 3780 2160 810

A168619 as a square array

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
`1`	`4`	`12`	`24`	`40`	`60`	`84`	`112`	`144`	`180`
`1`	`12`	`36`	`80`	`150`	`252`	`392`	`576`	`810`
`1`	`24`	`80`	`200`	`420`	`784`	`1344`	`2160`
`1`	`40`	`150`	`420`	`980`	`2016`	`3780`
`1`	`60`	`252`	`784`	`2016`	`4536`
`1`	`84`	`392`	`1344`	`3780`
`1`	`112`	`576`	`2160`
`1`	`144`	`810`
`1`

A168619 as an upper right triangle

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
	`1`	`4`	`12`	`24`	`40`	`60`	`84`	`112`	`144`	`180`
		`1`	`12`	`36`	`80`	`150`	`252`	`392`	`576`	`810`
			`1`	`24`	`80`	`200`	`420`	`784`	`1344`	`2160`
				`1`	`40`	`150`	`420`	`980`	`2016`	`3780`
					`1`	`60`	`252`	`784`	`2016`	`4536`
						`1`	`84`	`392`	`1344`	`3780`
							`1`	`112`	`576`	`2160`
								`1`	`144`	`810`
									`1`

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Last modified June 12 04:45 EDT 2024. Contains 373321 sequences. (Running on oeis4.)