A165490 - OEIS

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A165490 as a triangular array

1

0 1

0 1 1

0 2 2 2

0 6 5 6 6

0 24 16 18 24 23

0 120 64 62 84 115 105

0 720 312 252 312 460 630 550

0 5040 1812 1212 1302 1840 2835 3850 3236

0 40320 12288 6856 6240 7935 12180 19250 25888 21127

A165490 as a square array

`1`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`
`1`	`1`	`2`	`6`	`24`	`120`	`720`	`5040`	`40320`
`1`	`2`	`5`	`16`	`64`	`312`	`1812`	`12288`
`2`	`6`	`18`	`62`	`252`	`1212`	`6856`
`6`	`24`	`84`	`312`	`1302`	`6240`
`23`	`115`	`460`	`1840`	`7935`
`105`	`630`	`2835`	`12180`
`550`	`3850`	`19250`
`3236`	`25888`
`21127`

A165490 as an upper right triangle

`1`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`
	`1`	`1`	`2`	`6`	`24`	`120`	`720`	`5040`	`40320`
		`1`	`2`	`5`	`16`	`64`	`312`	`1812`	`12288`
			`2`	`6`	`18`	`62`	`252`	`1212`	`6856`
				`6`	`24`	`84`	`312`	`1302`	`6240`
					`23`	`115`	`460`	`1840`	`7935`
						`105`	`630`	`2835`	`12180`
							`550`	`3850`	`19250`
								`3236`	`25888`
									`21127`

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Last modified April 16 18:51 EDT 2024. Contains 371750 sequences. (Running on oeis4.)