A120493 - OEIS

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A120493 as a triangular array

1

1 1

2 4 2

5 15 15 5

14 56 84 56 14

42 210 420 420 210 42

132 792 1980 2640 1980 792 132

428 2996 8988 14980 14980 8988 2996 428

1416 11328 39648 79296 99120 79296 39648 11328 1416

A120493 as a square array

`1`	`1`	`2`	`5`	`14`	`42`	`132`	`428`	`1416`
`1`	`4`	`15`	`56`	`210`	`792`	`2996`	`11328`
`2`	`15`	`84`	`420`	`1980`	`8988`	`39648`
`5`	`56`	`420`	`2640`	`14980`	`79296`
`14`	`210`	`1980`	`14980`	`99120`
`42`	`792`	`8988`	`79296`
`132`	`2996`	`39648`
`428`	`11328`
`1416`

A120493 as an upper right triangle

`1`	`1`	`2`	`5`	`14`	`42`	`132`	`428`	`1416`
	`1`	`4`	`15`	`56`	`210`	`792`	`2996`	`11328`
		`2`	`15`	`84`	`420`	`1980`	`8988`	`39648`
			`5`	`56`	`420`	`2640`	`14980`	`79296`
				`14`	`210`	`1980`	`14980`	`99120`
					`42`	`792`	`8988`	`79296`
						`132`	`2996`	`39648`
							`428`	`11328`
								`1416`

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Last modified July 28 16:54 EDT 2024. Contains 374703 sequences. (Running on oeis4.)