A281693 - OEIS

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A281693 as a triangular array

0

0 0

0 0 0

1 6 15 0

2 272 847 222 0

9 2516 14575 19326 2348 0

34 19168 172398 402470 293814 21302 0

124 120824 1900616 7497214 8944910 3714629 176125 0

432 692320 17698286 126719222 269206287 173467508 42265965

A281693 as a square array

`0`	`0`	`0`	`1`	`2`	`9`	`34`	`124`	`432`
`0`	`0`	`6`	`272`	`2516`	`19168`	`120824`	`692320`
`0`	`15`	`847`	`14575`	`172398`	`1900616`	`17698286`
`0`	`222`	`19326`	`402470`	`7497214`	`126719222`
`0`	`2348`	`293814`	`8944910`	`269206287`
`0`	`21302`	`3714629`	`173467508`
`0`	`176125`	`42265965`
`0`

A281693 as an upper right triangle

`0`	`0`	`0`	`1`	`2`	`9`	`34`	`124`	`432`
	`0`	`0`	`6`	`272`	`2516`	`19168`	`120824`	`692320`
		`0`	`15`	`847`	`14575`	`172398`	`1900616`	`17698286`
			`0`	`222`	`19326`	`402470`	`7497214`	`126719222`
				`0`	`2348`	`293814`	`8944910`	`269206287`
					`0`	`21302`	`3714629`	`173467508`
						`0`	`176125`	`42265965`
							`0`

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Last modified April 18 22:18 EDT 2024. Contains 371782 sequences. (Running on oeis4.)