A136689 - OEIS

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A136689 as a triangular array

1

0 1

3 0 1

0 6 0 1

9 0 9 0 1

0 27 0 12 0 1

27 0 54 0 15 0 1

0 108 0 90 0 18 0 1

81 0 270 0 135 0 21 0 1

0 405 0 540 0 189 0 24 0 1

243 0 1215 0 945 0 252 0 27 0 1

0 1458 0 2835 0 1512 0

A136689 as a square array

`1`	`0`	`3`	`0`	`9`	`0`	`27`	`0`	`81`	`0`	`243`	`0`
`1`	`0`	`6`	`0`	`27`	`0`	`108`	`0`	`405`	`0`	`1458`
`1`	`0`	`9`	`0`	`54`	`0`	`270`	`0`	`1215`	`0`
`1`	`0`	`12`	`0`	`90`	`0`	`540`	`0`	`2835`
`1`	`0`	`15`	`0`	`135`	`0`	`945`	`0`
`1`	`0`	`18`	`0`	`189`	`0`	`1512`
`1`	`0`	`21`	`0`	`252`	`0`
`1`	`0`	`24`	`0`
`1`	`0`	`27`
`1`	`0`
`1`

A136689 as an upper right triangle

`1`	`0`	`3`	`0`	`9`	`0`	`27`	`0`	`81`	`0`	`243`	`0`
	`1`	`0`	`6`	`0`	`27`	`0`	`108`	`0`	`405`	`0`	`1458`
		`1`	`0`	`9`	`0`	`54`	`0`	`270`	`0`	`1215`	`0`
			`1`	`0`	`12`	`0`	`90`	`0`	`540`	`0`	`2835`
				`1`	`0`	`15`	`0`	`135`	`0`	`945`	`0`
					`1`	`0`	`18`	`0`	`189`	`0`	`1512`
						`1`	`0`	`21`	`0`	`252`	`0`
							`1`	`0`	`24`	`0`
								`1`	`0`	`27`
									`1`	`0`
										`1`

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Last modified April 25 05:56 EDT 2024. Contains 371964 sequences. (Running on oeis4.)