A171698 - OEIS

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A171698 as a triangular array

1

1 1

2 2 2

6 6 4 4

20 20 14 8 8

70 70 50 30 16 16

252 252 182 112 62 32 32

924 924 672 420 238 126 64 64

A171698 as a square array

`1`	`1`	`2`	`6`	`20`	`70`	`252`	`924`
`1`	`2`	`6`	`20`	`70`	`252`	`924`
`2`	`4`	`14`	`50`	`182`	`672`
`4`	`8`	`30`	`112`	`420`
`8`	`16`	`62`	`238`
`16`	`32`	`126`
`32`	`64`
`64`

A171698 as an upper right triangle

`1`	`1`	`2`	`6`	`20`	`70`	`252`	`924`
	`1`	`2`	`6`	`20`	`70`	`252`	`924`
		`2`	`4`	`14`	`50`	`182`	`672`
			`4`	`8`	`30`	`112`	`420`
				`8`	`16`	`62`	`238`
					`16`	`32`	`126`
						`32`	`64`
							`64`

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Last modified July 28 00:45 EDT 2024. Contains 374674 sequences. (Running on oeis4.)