A288026 - OEIS

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A288026 as a triangular array

1

1 1

2 2 2

2 5 5 2

3 11 22 11 3

4 24 75 75 24 4

5 51 264 400 264 51 5

7 109 941 2357 2357 941 109 7

9 234 3286 13407 22228 13407 3286 234 9

12 503 11623 76667 207423 207423 76667 11623 503 12

A288026 as a square array

`1`	`1`	`2`	`2`	`3`	`4`	`5`	`7`	`9`	`12`
`1`	`2`	`5`	`11`	`24`	`51`	`109`	`234`	`503`
`2`	`5`	`22`	`75`	`264`	`941`	`3286`	`11623`
`2`	`11`	`75`	`400`	`2357`	`13407`	`76667`
`3`	`24`	`264`	`2357`	`22228`	`207423`
`4`	`51`	`941`	`13407`	`207423`
`5`	`109`	`3286`	`76667`
`7`	`234`	`11623`
`9`	`503`
`12`

A288026 as an upper right triangle

`1`	`1`	`2`	`2`	`3`	`4`	`5`	`7`	`9`	`12`
	`1`	`2`	`5`	`11`	`24`	`51`	`109`	`234`	`503`
		`2`	`5`	`22`	`75`	`264`	`941`	`3286`	`11623`
			`2`	`11`	`75`	`400`	`2357`	`13407`	`76667`
				`3`	`24`	`264`	`2357`	`22228`	`207423`
					`4`	`51`	`941`	`13407`	`207423`
						`5`	`109`	`3286`	`76667`
							`7`	`234`	`11623`
								`9`	`503`
									`12`

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Last modified May 1 08:32 EDT 2024. Contains 372149 sequences. (Running on oeis4.)