A266861 - OEIS

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A266861 as a triangular array

1

1 0

1 0 1

1 0 4 2

1 0 17 39 9

1 0 66 999 1281 44

1 0 324 31501 328701 67240 265

1 0 1565 1115170 104767812 200359723 5126572 1854

1 0 7908 41983402 37478933496 781538349425 215846101578 531096757 14833

1 0

A266861 as a square array

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`
`1`	`4`	`17`	`66`	`324`	`1565`	`7908`
`2`	`39`	`999`	`31501`	`1115170`	`41983402`
`9`	`1281`	`328701`	`104767812`	`37478933496`
`44`	`67240`	`200359723`	`781538349425`
`265`	`5126572`	`215846101578`
`1854`	`531096757`
`14833`

A266861 as an upper right triangle

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`
		`1`	`4`	`17`	`66`	`324`	`1565`	`7908`
			`2`	`39`	`999`	`31501`	`1115170`	`41983402`
				`9`	`1281`	`328701`	`104767812`	`37478933496`
					`44`	`67240`	`200359723`	`781538349425`
						`265`	`5126572`	`215846101578`
							`1854`	`531096757`
								`14833`

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Last modified January 25 08:01 EST 2021. Contains 340416 sequences. (Running on oeis4.)