A107131 - OEIS

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A107131 as a triangular array

1

0 1

0 1 1

0 0 3 1

0 0 2 6 1

0 0 0 10 10 1

0 0 0 5 30 15 1

0 0 0 0 35 70 21 1

0 0 0 0 14 140 140 28 1

0 0 0 0 0 126 420 252 36 1

0 0 0 0 0 42 630 1050 420 45 1

0 0 0 0 0 0 462 2310 2310 660 55 1

A107131 as a square array

`1`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`
`1`	`1`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`
`1`	`3`	`2`	`0`	`0`	`0`	`0`	`0`	`0`	`0`
`1`	`6`	`10`	`5`	`0`	`0`	`0`	`0`	`0`
`1`	`10`	`30`	`35`	`14`	`0`	`0`	`0`
`1`	`15`	`70`	`140`	`126`	`42`	`0`
`1`	`21`	`140`	`420`	`630`	`462`
`1`	`28`	`252`	`1050`	`2310`
`1`	`36`	`420`	`2310`
`1`	`45`	`660`
`1`	`55`
`1`

A107131 as an upper right triangle

`1`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`
	`1`	`1`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`
		`1`	`3`	`2`	`0`	`0`	`0`	`0`	`0`	`0`	`0`
			`1`	`6`	`10`	`5`	`0`	`0`	`0`	`0`	`0`
				`1`	`10`	`30`	`35`	`14`	`0`	`0`	`0`
					`1`	`15`	`70`	`140`	`126`	`42`	`0`
						`1`	`21`	`140`	`420`	`630`	`462`
							`1`	`28`	`252`	`1050`	`2310`
								`1`	`36`	`420`	`2310`
									`1`	`45`	`660`
										`1`	`55`
											`1`

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Last modified April 24 05:44 EDT 2024. Contains 371918 sequences. (Running on oeis4.)