A178517 - OEIS

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A178517 as a triangular array

1

1 0

4 0 0

11 4 0 0

36 40 0 0 0

117 290 48 0 0 0

393 1785 1008 0 0 0 0

1339 9996 12712 1440 0 0 0 0

4630 52584 123858 48312 0 0 0 0 0

16193 264720 1027446 904840 80640 0 0 0 0 0

57201 1290135 7627158 12449800 3807936 0

A178517 as a square array

`1`	`1`	`4`	`11`	`36`	`117`	`393`	`1339`	`4630`	`16193`	`57201`
`0`	`0`	`4`	`40`	`290`	`1785`	`9996`	`52584`	`264720`	`1290135`
`0`	`0`	`0`	`48`	`1008`	`12712`	`123858`	`1027446`	`7627158`
`0`	`0`	`0`	`0`	`1440`	`48312`	`904840`	`12449800`
`0`	`0`	`0`	`0`	`0`	`80640`	`3807936`
`0`	`0`	`0`	`0`	`0`	`0`
`0`	`0`	`0`	`0`
`0`	`0`	`0`
`0`	`0`
`0`

A178517 as an upper right triangle

`1`	`1`	`4`	`11`	`36`	`117`	`393`	`1339`	`4630`	`16193`	`57201`
	`0`	`0`	`4`	`40`	`290`	`1785`	`9996`	`52584`	`264720`	`1290135`
		`0`	`0`	`0`	`48`	`1008`	`12712`	`123858`	`1027446`	`7627158`
			`0`	`0`	`0`	`0`	`1440`	`48312`	`904840`	`12449800`
				`0`	`0`	`0`	`0`	`0`	`80640`	`3807936`
					`0`	`0`	`0`	`0`	`0`	`0`
						`0`	`0`	`0`	`0`
							`0`	`0`	`0`
								`0`	`0`
									`0`

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Last modified April 19 19:02 EDT 2024. Contains 371798 sequences. (Running on oeis4.)