A286784 - OEIS

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A286784 as a triangular array

1

1 1

2 4 1

5 15 9 1

14 56 56 16 1

42 210 300 150 25 1

132 792 1485 1100 330 36 1

429 3003 7007 7007 3185 637 49 1

1430 11440 32032 40768 25480 7840 1120 64 1

4862 43758 143208 222768 179928 77112 17136 1836 81 1

16796 167960 629850 1162800 1162800 651168 203490 34200 2850 100 1

A286784 as a square array

`1`	`1`	`2`	`5`	`14`	`42`	`132`	`429`	`1430`	`4862`	`16796`
`1`	`4`	`15`	`56`	`210`	`792`	`3003`	`11440`	`43758`	`167960`
`1`	`9`	`56`	`300`	`1485`	`7007`	`32032`	`143208`	`629850`
`1`	`16`	`150`	`1100`	`7007`	`40768`	`222768`	`1162800`
`1`	`25`	`330`	`3185`	`25480`	`179928`	`1162800`
`1`	`36`	`637`	`7840`	`77112`	`651168`
`1`	`49`	`1120`	`17136`	`203490`
`1`	`64`	`1836`	`34200`
`1`	`81`	`2850`
`1`	`100`
`1`

A286784 as an upper right triangle

`1`	`1`	`2`	`5`	`14`	`42`	`132`	`429`	`1430`	`4862`	`16796`
	`1`	`4`	`15`	`56`	`210`	`792`	`3003`	`11440`	`43758`	`167960`
		`1`	`9`	`56`	`300`	`1485`	`7007`	`32032`	`143208`	`629850`
			`1`	`16`	`150`	`1100`	`7007`	`40768`	`222768`	`1162800`
				`1`	`25`	`330`	`3185`	`25480`	`179928`	`1162800`
					`1`	`36`	`637`	`7840`	`77112`	`651168`
						`1`	`49`	`1120`	`17136`	`203490`
							`1`	`64`	`1836`	`34200`
								`1`	`81`	`2850`
									`1`	`100`
										`1`

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Last modified August 22 06:14 EDT 2024. Contains 375356 sequences. (Running on oeis4.)