A222690 - OEIS

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A222690 as a triangular array

1

0 0

0 3 0

3 4 8 0

4 18 32 50 0

8 56 220 420 216 0

10 237 664 3189 2050 1120 0

50 784 7248 29770 47696 32296 5440 0

66 3218 25642 288829 419562 723244 159672 27576 0

216 11152 298371 3056797 12765040 20259516

A222690 as a square array

`1`	`0`	`0`	`3`	`4`	`8`	`10`	`50`	`66`	`216`
`0`	`3`	`4`	`18`	`56`	`237`	`784`	`3218`	`11152`
`0`	`8`	`32`	`220`	`664`	`7248`	`25642`	`298371`
`0`	`50`	`420`	`3189`	`29770`	`288829`	`3056797`
`0`	`216`	`2050`	`47696`	`419562`	`12765040`
`0`	`1120`	`32296`	`723244`	`20259516`
`0`	`5440`	`159672`
`0`	`27576`
`0`

A222690 as an upper right triangle

`1`	`0`	`0`	`3`	`4`	`8`	`10`	`50`	`66`	`216`
	`0`	`3`	`4`	`18`	`56`	`237`	`784`	`3218`	`11152`
		`0`	`8`	`32`	`220`	`664`	`7248`	`25642`	`298371`
			`0`	`50`	`420`	`3189`	`29770`	`288829`	`3056797`
				`0`	`216`	`2050`	`47696`	`419562`	`12765040`
					`0`	`1120`	`32296`	`723244`	`20259516`
						`0`	`5440`	`159672`
							`0`	`27576`
								`0`

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Last modified April 25 01:35 EDT 2024. Contains 371964 sequences. (Running on oeis4.)