A222057 - OEIS

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A222057 as a triangular array

1

1 3

1 9 11

1 21 66 50

1 45 275 500 274

1 93 990 3250 4110 1764

1 189 3311 17500 38360 37044 13068

1 381 10626 85050 287700 469224 365904 109584

1 765 33275 388500 1904574 4667544 6037416 3945024 1026576

1 1533 102630 1705250 11651850 40266828 76839840 82188000 46195920 10628640

A222057 as a square array

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
`3`	`9`	`21`	`45`	`93`	`189`	`381`	`765`	`1533`
`11`	`66`	`275`	`990`	`3311`	`10626`	`33275`	`102630`
`50`	`500`	`3250`	`17500`	`85050`	`388500`	`1705250`
`274`	`4110`	`38360`	`287700`	`1904574`	`11651850`
`1764`	`37044`	`469224`	`4667544`	`40266828`
`13068`	`365904`	`6037416`	`76839840`
`109584`	`3945024`	`82188000`
`1026576`	`46195920`
`10628640`

A222057 as an upper right triangle

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
	`3`	`9`	`21`	`45`	`93`	`189`	`381`	`765`	`1533`
		`11`	`66`	`275`	`990`	`3311`	`10626`	`33275`	`102630`
			`50`	`500`	`3250`	`17500`	`85050`	`388500`	`1705250`
				`274`	`4110`	`38360`	`287700`	`1904574`	`11651850`
					`1764`	`37044`	`469224`	`4667544`	`40266828`
						`13068`	`365904`	`6037416`	`76839840`
							`109584`	`3945024`	`82188000`
								`1026576`	`46195920`
									`10628640`

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Last modified April 23 03:30 EDT 2024. Contains 371906 sequences. (Running on oeis4.)