A183253 - OEIS

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A183253 as a triangular array

1

1 1

1 3 1

2 6 6 2

3 18 25 18 3

6 60 164 164 60 6

10 210 1092 2101 1092 210 10

20 756 7954 29100 29100 7954 756 20

35 2772 57519 417190 807261 417190 57519 2772 35

70 10296 429936 6104168 23226996 23226996

A183253 as a square array

`1`	`1`	`1`	`2`	`3`	`6`	`10`	`20`	`35`	`70`
`1`	`3`	`6`	`18`	`60`	`210`	`756`	`2772`	`10296`
`1`	`6`	`25`	`164`	`1092`	`7954`	`57519`	`429936`
`2`	`18`	`164`	`2101`	`29100`	`417190`	`6104168`
`3`	`60`	`1092`	`29100`	`807261`	`23226996`
`6`	`210`	`7954`	`417190`	`23226996`
`10`	`756`	`57519`
`20`	`2772`
`35`

A183253 as an upper right triangle

`1`	`1`	`1`	`2`	`3`	`6`	`10`	`20`	`35`	`70`
	`1`	`3`	`6`	`18`	`60`	`210`	`756`	`2772`	`10296`
		`1`	`6`	`25`	`164`	`1092`	`7954`	`57519`	`429936`
			`2`	`18`	`164`	`2101`	`29100`	`417190`	`6104168`
				`3`	`60`	`1092`	`29100`	`807261`	`23226996`
					`6`	`210`	`7954`	`417190`	`23226996`
						`10`	`756`	`57519`
							`20`	`2772`
								`35`

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Last modified April 19 19:02 EDT 2024. Contains 371798 sequences. (Running on oeis4.)