A238889 - OEIS

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A238889 as a triangular array

1

1 0

1 1 0

1 2 1 0

1 4 3 2 0

1 7 7 7 4 0

1 12 16 19 18 10 0

1 20 35 47 55 48 26 0

1 33 74 117 151 170 142 76 0

1 54 153 284 399 515 544 438 232 0

1 88 312 675 1061 1471 1826 1846 1452 764 0

1 143 629 1575 2792 4119 5651 6664 6494 5008 2620 0

A238889 as a square array

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
`0`	`1`	`2`	`4`	`7`	`12`	`20`	`33`	`54`	`88`	`143`
`0`	`1`	`3`	`7`	`16`	`35`	`74`	`153`	`312`	`629`
`0`	`2`	`7`	`19`	`47`	`117`	`284`	`675`	`1575`
`0`	`4`	`18`	`55`	`151`	`399`	`1061`	`2792`
`0`	`10`	`48`	`170`	`515`	`1471`	`4119`
`0`	`26`	`142`	`544`	`1826`	`5651`
`0`	`76`	`438`	`1846`	`6664`
`0`	`232`	`1452`	`6494`
`0`	`764`	`5008`
`0`	`2620`
`0`

A238889 as an upper right triangle

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
	`0`	`1`	`2`	`4`	`7`	`12`	`20`	`33`	`54`	`88`	`143`
		`0`	`1`	`3`	`7`	`16`	`35`	`74`	`153`	`312`	`629`
			`0`	`2`	`7`	`19`	`47`	`117`	`284`	`675`	`1575`
				`0`	`4`	`18`	`55`	`151`	`399`	`1061`	`2792`
					`0`	`10`	`48`	`170`	`515`	`1471`	`4119`
						`0`	`26`	`142`	`544`	`1826`	`5651`
							`0`	`76`	`438`	`1846`	`6664`
								`0`	`232`	`1452`	`6494`
									`0`	`764`	`5008`
										`0`	`2620`
											`0`

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Last modified April 23 06:04 EDT 2024. Contains 371906 sequences. (Running on oeis4.)