A130020 - OEIS

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A130020 as a triangular array

1

1 0

1 1 0

1 2 2 0

1 3 5 5 0

1 4 9 14 14 0

1 5 14 28 42 42 0

1 6 20 48 90 132 132 0

1 7 27 75 165 297 429 429 0

1 8 35 110 275 572 1001 1430 1430 0

1 9 44 154 429 1001 2002 3432 4862 4862 0

A130020 as a square array

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
`0`	`1`	`2`	`3`	`4`	`5`	`6`	`7`	`8`	`9`
`0`	`2`	`5`	`9`	`14`	`20`	`27`	`35`	`44`
`0`	`5`	`14`	`28`	`48`	`75`	`110`	`154`
`0`	`14`	`42`	`90`	`165`	`275`	`429`
`0`	`42`	`132`	`297`	`572`	`1001`
`0`	`132`	`429`	`1001`	`2002`
`0`	`429`	`1430`	`3432`
`0`	`1430`	`4862`
`0`	`4862`
`0`

A130020 as an upper right triangle

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
	`0`	`1`	`2`	`3`	`4`	`5`	`6`	`7`	`8`	`9`
		`0`	`2`	`5`	`9`	`14`	`20`	`27`	`35`	`44`
			`0`	`5`	`14`	`28`	`48`	`75`	`110`	`154`
				`0`	`14`	`42`	`90`	`165`	`275`	`429`
					`0`	`42`	`132`	`297`	`572`	`1001`
						`0`	`132`	`429`	`1001`	`2002`
							`0`	`429`	`1430`	`3432`
								`0`	`1430`	`4862`
									`0`	`4862`
										`0`

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Last modified May 21 01:24 EDT 2024. Contains 372720 sequences. (Running on oeis4.)