A137216 - OEIS

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A137216 as a triangular array

1

1 1

2 2 3

6 9 22 41

24 64 266 708 1486

120 625 4536 17457 48088 108129

720 7776 100392 563088 2043864 5709120 13399176

5040 117649 2739472 22516209 107972560 375217945 1053757584 2544404617

40320 2097152 89020752 1076444064 6831882992 29566405440 99420254352 279663595232 688833593904

A137216 as a square array

`1`	`1`	`2`	`6`	`24`	`120`	`720`	`5040`	`40320`
`1`	`2`	`9`	`64`	`625`	`7776`	`117649`	`2097152`
`3`	`22`	`266`	`4536`	`100392`	`2739472`	`89020752`
`41`	`708`	`17457`	`563088`	`22516209`	`1076444064`
`1486`	`48088`	`2043864`	`107972560`	`6831882992`
`108129`	`5709120`	`375217945`	`29566405440`
`13399176`	`1053757584`	`99420254352`
`2544404617`	`279663595232`
`688833593904`

A137216 as an upper right triangle

`1`	`1`	`2`	`6`	`24`	`120`	`720`	`5040`	`40320`
	`1`	`2`	`9`	`64`	`625`	`7776`	`117649`	`2097152`
		`3`	`22`	`266`	`4536`	`100392`	`2739472`	`89020752`
			`41`	`708`	`17457`	`563088`	`22516209`	`1076444064`
				`1486`	`48088`	`2043864`	`107972560`	`6831882992`
					`108129`	`5709120`	`375217945`	`29566405440`
						`13399176`	`1053757584`	`99420254352`
							`2544404617`	`279663595232`
								`688833593904`

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Last modified August 9 08:50 EDT 2024. Contains 375035 sequences. (Running on oeis4.)