A180663 - OEIS

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A180663 as a triangular array

0

1 0

2 1 0

6 2 1 0

15 6 2 1 0

40 15 6 2 1 0

104 40 15 6 2 1 0

273 104 40 15 6 2 1 0

714 273 104 40 15 6 2 1 0

1870 714 273 104 40 15 6 2 1 0

4895 1870 714 273 104 40 15 6 2 1 0

A180663 as a square array

`0`	`1`	`2`	`6`	`15`	`40`	`104`	`273`	`714`	`1870`	`4895`
`0`	`1`	`2`	`6`	`15`	`40`	`104`	`273`	`714`	`1870`
`0`	`1`	`2`	`6`	`15`	`40`	`104`	`273`	`714`
`0`	`1`	`2`	`6`	`15`	`40`	`104`	`273`
`0`	`1`	`2`	`6`	`15`	`40`	`104`
`0`	`1`	`2`	`6`	`15`	`40`
`0`	`1`	`2`	`6`	`15`
`0`	`1`	`2`	`6`
`0`	`1`	`2`
`0`	`1`
`0`

A180663 as an upper right triangle

`0`	`1`	`2`	`6`	`15`	`40`	`104`	`273`	`714`	`1870`	`4895`
	`0`	`1`	`2`	`6`	`15`	`40`	`104`	`273`	`714`	`1870`
		`0`	`1`	`2`	`6`	`15`	`40`	`104`	`273`	`714`
			`0`	`1`	`2`	`6`	`15`	`40`	`104`	`273`
				`0`	`1`	`2`	`6`	`15`	`40`	`104`
					`0`	`1`	`2`	`6`	`15`	`40`
						`0`	`1`	`2`	`6`	`15`
							`0`	`1`	`2`	`6`
								`0`	`1`	`2`
									`0`	`1`
										`0`

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Last modified April 25 08:27 EDT 2024. Contains 371964 sequences. (Running on oeis4.)