A300646 - OEIS

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A300646 as a triangular array

0

0 0

0 1 0

0 2 2 0

0 4 2 4 0

0 9 10 10 9 0

0 19 30 64 30 19 0

0 41 104 316 316 104 41 0

0 88 340 1789 2998 1789 340 88 0

0 189 1144 9738 28089 28089 9738 1144 189 0

0 406 3795 54293 268615 456649 268615 54293 3795

A300646 as a square array

`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`
`0`	`1`	`2`	`4`	`9`	`19`	`41`	`88`	`189`	`406`
`0`	`2`	`2`	`10`	`30`	`104`	`340`	`1144`	`3795`
`0`	`4`	`10`	`64`	`316`	`1789`	`9738`	`54293`
`0`	`9`	`30`	`316`	`2998`	`28089`	`268615`
`0`	`19`	`104`	`1789`	`28089`	`456649`
`0`	`41`	`340`	`9738`	`268615`
`0`	`88`	`1144`	`54293`
`0`	`189`	`3795`
`0`

A300646 as an upper right triangle

`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`
	`0`	`1`	`2`	`4`	`9`	`19`	`41`	`88`	`189`	`406`
		`0`	`2`	`2`	`10`	`30`	`104`	`340`	`1144`	`3795`
			`0`	`4`	`10`	`64`	`316`	`1789`	`9738`	`54293`
				`0`	`9`	`30`	`316`	`2998`	`28089`	`268615`
					`0`	`19`	`104`	`1789`	`28089`	`456649`
						`0`	`41`	`340`	`9738`	`268615`
							`0`	`88`	`1144`	`54293`
								`0`	`189`	`3795`
									`0`

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Last modified May 13 21:17 EDT 2024. Contains 372523 sequences. (Running on oeis4.)