A189231 - OEIS

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A189231 as a triangular array

1

1 1

1 2 1

3 2 3 1

2 8 3 4 1

10 5 15 4 5 1

5 30 9 24 5 6 1

35 14 63 14 35 6 7 1

14 112 28 112 20 48 7 8 1

126 42 252 48 180 27 63 8 9 1

42 420 90 480 75 270 35 80 9 10 1

462 132 990 165 825 110 385 44 99 10 11 1

A189231 as a square array

`1`	`1`	`1`	`3`	`2`	`10`	`5`	`35`	`14`	`126`	`42`	`462`
`1`	`2`	`2`	`8`	`5`	`30`	`14`	`112`	`42`	`420`	`132`
`1`	`3`	`3`	`15`	`9`	`63`	`28`	`252`	`90`	`990`
`1`	`4`	`4`	`24`	`14`	`112`	`48`	`480`	`165`
`1`	`5`	`5`	`35`	`20`	`180`	`75`	`825`
`1`	`6`	`6`	`48`	`27`	`270`	`110`
`1`	`7`	`7`	`63`	`35`	`385`
`1`	`8`	`8`	`80`	`44`
`1`	`9`	`9`	`99`
`1`	`10`	`10`
`1`	`11`
`1`

A189231 as an upper right triangle

`1`	`1`	`1`	`3`	`2`	`10`	`5`	`35`	`14`	`126`	`42`	`462`
	`1`	`2`	`2`	`8`	`5`	`30`	`14`	`112`	`42`	`420`	`132`
		`1`	`3`	`3`	`15`	`9`	`63`	`28`	`252`	`90`	`990`
			`1`	`4`	`4`	`24`	`14`	`112`	`48`	`480`	`165`
				`1`	`5`	`5`	`35`	`20`	`180`	`75`	`825`
					`1`	`6`	`6`	`48`	`27`	`270`	`110`
						`1`	`7`	`7`	`63`	`35`	`385`
							`1`	`8`	`8`	`80`	`44`
								`1`	`9`	`9`	`99`
									`1`	`10`	`10`
										`1`	`11`
											`1`

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Last modified April 25 03:15 EDT 2024. Contains 371964 sequences. (Running on oeis4.)