A008290 - OEIS

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A008290 as a triangular array

1

0 1

1 0 1

2 3 0 1

9 8 6 0 1

44 45 20 10 0 1

265 264 135 40 15 0 1

1854 1855 924 315 70 21 0 1

14833 14832 7420 2464 630 112 28 0 1

133496 133497 66744 22260 5544 1134 168 36 0 1

1334961 1334960 667485 222480 55650 11088 1890 240 45 0 1

A008290 as a square array

`1`	`0`	`1`	`2`	`9`	`44`	`265`	`1854`	`14833`	`133496`	`1334961`
`1`	`0`	`3`	`8`	`45`	`264`	`1855`	`14832`	`133497`	`1334960`
`1`	`0`	`6`	`20`	`135`	`924`	`7420`	`66744`	`667485`
`1`	`0`	`10`	`40`	`315`	`2464`	`22260`	`222480`
`1`	`0`	`15`	`70`	`630`	`5544`	`55650`
`1`	`0`	`21`	`112`	`1134`	`11088`
`1`	`0`	`28`	`168`	`1890`
`1`	`0`	`36`	`240`
`1`	`0`	`45`
`1`	`0`
`1`

A008290 as an upper right triangle

`1`	`0`	`1`	`2`	`9`	`44`	`265`	`1854`	`14833`	`133496`	`1334961`
	`1`	`0`	`3`	`8`	`45`	`264`	`1855`	`14832`	`133497`	`1334960`
		`1`	`0`	`6`	`20`	`135`	`924`	`7420`	`66744`	`667485`
			`1`	`0`	`10`	`40`	`315`	`2464`	`22260`	`222480`
				`1`	`0`	`15`	`70`	`630`	`5544`	`55650`
					`1`	`0`	`21`	`112`	`1134`	`11088`
						`1`	`0`	`28`	`168`	`1890`
							`1`	`0`	`36`	`240`
								`1`	`0`	`45`
									`1`	`0`
										`1`

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Last modified April 27 23:22 EDT 2024. Contains 372020 sequences. (Running on oeis4.)