A147720 - OEIS

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A147720 as a triangular array

1

0 1

0 2 1

0 6 4 1

0 18 16 6 1

0 54 60 30 8 1

0 162 216 134 48 10 1

0 486 756 558 248 70 12 1

0 1458 2592 2214 1168 410 96 14 1

0 4374 8748 8478 5160 2150 628 126 16

A147720 as a square array

`1`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`
`1`	`2`	`6`	`18`	`54`	`162`	`486`	`1458`	`4374`
`1`	`4`	`16`	`60`	`216`	`756`	`2592`	`8748`
`1`	`6`	`30`	`134`	`558`	`2214`	`8478`
`1`	`8`	`48`	`248`	`1168`	`5160`
`1`	`10`	`70`	`410`	`2150`
`1`	`12`	`96`	`628`
`1`	`14`	`126`
`1`	`16`

A147720 as an upper right triangle

`1`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`
	`1`	`2`	`6`	`18`	`54`	`162`	`486`	`1458`	`4374`
		`1`	`4`	`16`	`60`	`216`	`756`	`2592`	`8748`
			`1`	`6`	`30`	`134`	`558`	`2214`	`8478`
				`1`	`8`	`48`	`248`	`1168`	`5160`
					`1`	`10`	`70`	`410`	`2150`
						`1`	`12`	`96`	`628`
							`1`	`14`	`126`
								`1`	`16`

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Last modified May 15 02:15 EDT 2024. Contains 372536 sequences. (Running on oeis4.)