A173018 - OEIS

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A173018 as a triangular array

1

1 0

1 1 0

1 4 1 0

1 11 11 1 0

1 26 66 26 1 0

1 57 302 302 57 1 0

1 120 1191 2416 1191 120 1 0

1 247 4293 15619 15619 4293 247 1 0

1 502 14608 88234 156190 88234 14608 502 1 0

1 1013 47840 455192 1310354 1310354 455192 47840 1013 1 0

A173018 as a square array

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
`0`	`1`	`4`	`11`	`26`	`57`	`120`	`247`	`502`	`1013`
`0`	`1`	`11`	`66`	`302`	`1191`	`4293`	`14608`	`47840`
`0`	`1`	`26`	`302`	`2416`	`15619`	`88234`	`455192`
`0`	`1`	`57`	`1191`	`15619`	`156190`	`1310354`
`0`	`1`	`120`	`4293`	`88234`	`1310354`
`0`	`1`	`247`	`14608`	`455192`
`0`	`1`	`502`	`47840`
`0`	`1`	`1013`
`0`	`1`
`0`

A173018 as an upper right triangle

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
	`0`	`1`	`4`	`11`	`26`	`57`	`120`	`247`	`502`	`1013`
		`0`	`1`	`11`	`66`	`302`	`1191`	`4293`	`14608`	`47840`
			`0`	`1`	`26`	`302`	`2416`	`15619`	`88234`	`455192`
				`0`	`1`	`57`	`1191`	`15619`	`156190`	`1310354`
					`0`	`1`	`120`	`4293`	`88234`	`1310354`
						`0`	`1`	`247`	`14608`	`455192`
							`0`	`1`	`502`	`47840`
								`0`	`1`	`1013`
									`0`	`1`
										`0`

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Last modified September 14 03:52 EDT 2024. Contains 375911 sequences. (Running on oeis4.)