A255982 - OEIS

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A255982 as a triangular array

1

0 1

0 2 4

0 5 29 30

0 14 184 486 336

0 42 1148 5880 9744 5040

0 132 7228 64464 192984 230400 95040

0 429 46224 679195 3279060 6792750 6308280 2162160

0 1430 300476 7043814 51622600 165293700 259518600 196756560 57657600

A255982 as a square array

`1`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`
`1`	`2`	`5`	`14`	`42`	`132`	`429`	`1430`
`4`	`29`	`184`	`1148`	`7228`	`46224`	`300476`
`30`	`486`	`5880`	`64464`	`679195`	`7043814`
`336`	`9744`	`192984`	`3279060`	`51622600`
`5040`	`230400`	`6792750`	`165293700`
`95040`	`6308280`	`259518600`
`2162160`	`196756560`
`57657600`

A255982 as an upper right triangle

`1`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`
	`1`	`2`	`5`	`14`	`42`	`132`	`429`	`1430`
		`4`	`29`	`184`	`1148`	`7228`	`46224`	`300476`
			`30`	`486`	`5880`	`64464`	`679195`	`7043814`
				`336`	`9744`	`192984`	`3279060`	`51622600`
					`5040`	`230400`	`6792750`	`165293700`
						`95040`	`6308280`	`259518600`
							`2162160`	`196756560`
								`57657600`

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Last modified April 20 05:25 EDT 2024. Contains 371798 sequences. (Running on oeis4.)