A180984 - OEIS

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A180984 as a triangular array

2

1 1

0 3 0

0 3 3 0

0 1 15 1 0

0 0 31 31 0 0

0 0 34 234 34 0 0

0 0 21 925 925 21 0 0

0 0 7 2366 10706 2366 7 0 0

0 0 1 4305 77079 77079 4305 1 0 0

0 0 0 5845 400672 1411450 400672 5845 0 0 0

0 0 0 6059 1621242

A180984 as a square array

`2`	`1`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`
`1`	`3`	`3`	`1`	`0`	`0`	`0`	`0`	`0`	`0`	`0`
`0`	`3`	`15`	`31`	`34`	`21`	`7`	`1`	`0`	`0`
`0`	`1`	`31`	`234`	`925`	`2366`	`4305`	`5845`	`6059`
`0`	`0`	`34`	`925`	`10706`	`77079`	`400672`	`1621242`
`0`	`0`	`21`	`2366`	`77079`	`1411450`
`0`	`0`	`7`	`4305`	`400672`
`0`	`0`	`1`	`5845`
`0`	`0`	`0`
`0`	`0`
`0`

A180984 as an upper right triangle

`2`	`1`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`
	`1`	`3`	`3`	`1`	`0`	`0`	`0`	`0`	`0`	`0`	`0`
		`0`	`3`	`15`	`31`	`34`	`21`	`7`	`1`	`0`	`0`
			`0`	`1`	`31`	`234`	`925`	`2366`	`4305`	`5845`	`6059`
				`0`	`0`	`34`	`925`	`10706`	`77079`	`400672`	`1621242`
					`0`	`0`	`21`	`2366`	`77079`	`1411450`
						`0`	`0`	`7`	`4305`	`400672`
							`0`	`0`	`1`	`5845`
								`0`	`0`	`0`
									`0`	`0`
										`0`

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Last modified April 25 01:06 EDT 2024. Contains 371964 sequences. (Running on oeis4.)