A050155 - OEIS

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A050155 as a triangular array

1

3 1

9 5 1

28 20 7 1

90 75 35 9 1

297 275 154 54 11 1

1001 1001 637 273 77 13 1

3432 3640 2548 1260 440 104 15 1

11934 13260 9996 5508 2244 663 135 17 1

41990 48450 38760 23256 10659 3705 950 170 19 1

A050155 as a square array

`1`	`3`	`9`	`28`	`90`	`297`	`1001`	`3432`	`11934`	`41990`
`1`	`5`	`20`	`75`	`275`	`1001`	`3640`	`13260`	`48450`
`1`	`7`	`35`	`154`	`637`	`2548`	`9996`	`38760`
`1`	`9`	`54`	`273`	`1260`	`5508`	`23256`
`1`	`11`	`77`	`440`	`2244`	`10659`
`1`	`13`	`104`	`663`	`3705`
`1`	`15`	`135`	`950`
`1`	`17`	`170`
`1`	`19`
`1`

A050155 as an upper right triangle

`1`	`3`	`9`	`28`	`90`	`297`	`1001`	`3432`	`11934`	`41990`
	`1`	`5`	`20`	`75`	`275`	`1001`	`3640`	`13260`	`48450`
		`1`	`7`	`35`	`154`	`637`	`2548`	`9996`	`38760`
			`1`	`9`	`54`	`273`	`1260`	`5508`	`23256`
				`1`	`11`	`77`	`440`	`2244`	`10659`
					`1`	`13`	`104`	`663`	`3705`
						`1`	`15`	`135`	`950`
							`1`	`17`	`170`
								`1`	`19`
									`1`

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Last modified April 19 18:05 EDT 2024. Contains 371798 sequences. (Running on oeis4.)