A115255 - OEIS

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A115255 as a triangular array

1

2 2

6 5 6

20 14 14 20

70 46 41 46 70

252 160 134 134 160 252

924 574 466 441 466 574 924

3432 2100 1672 1534 1534 1672 2100 3432

12870 7788 6118 5506 5341 5506 6118 7788 12870

48620 29172 22692 20152 19174

A115255 as a square array

`1`	`2`	`6`	`20`	`70`	`252`	`924`	`3432`	`12870`	`48620`
`2`	`5`	`14`	`46`	`160`	`574`	`2100`	`7788`	`29172`
`6`	`14`	`41`	`134`	`466`	`1672`	`6118`	`22692`
`20`	`46`	`134`	`441`	`1534`	`5506`	`20152`
`70`	`160`	`466`	`1534`	`5341`	`19174`
`252`	`574`	`1672`	`5506`
`924`	`2100`	`6118`
`3432`	`7788`
`12870`

A115255 as an upper right triangle

`1`	`2`	`6`	`20`	`70`	`252`	`924`	`3432`	`12870`	`48620`
	`2`	`5`	`14`	`46`	`160`	`574`	`2100`	`7788`	`29172`
		`6`	`14`	`41`	`134`	`466`	`1672`	`6118`	`22692`
			`20`	`46`	`134`	`441`	`1534`	`5506`	`20152`
				`70`	`160`	`466`	`1534`	`5341`	`19174`
					`252`	`574`	`1672`	`5506`
						`924`	`2100`	`6118`
							`3432`	`7788`
								`12870`

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Last modified April 23 19:56 EDT 2024. Contains 371916 sequences. (Running on oeis4.)