A267222 - OEIS

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A267222 as a triangular array

1

1 1

1 0 2

1 0 3 6

1 0 8 35 24

1 0 17 458 889 120

1 0 34 7137 63600 52759 720

1 0 68 127262 6574092 46185656 4249084 5040

1 0 164 2409733 807737754 57528166669 53918229032 454920734 40320

1 0 385 47615756

A267222 as a square array

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
`1`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`
`2`	`3`	`8`	`17`	`34`	`68`	`164`	`385`
`6`	`35`	`458`	`7137`	`127262`	`2409733`	`47615756`
`24`	`889`	`63600`	`6574092`	`807737754`
`120`	`52759`	`46185656`	`57528166669`
`720`	`4249084`	`53918229032`
`5040`	`454920734`
`40320`

A267222 as an upper right triangle

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
	`1`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`
		`2`	`3`	`8`	`17`	`34`	`68`	`164`	`385`
			`6`	`35`	`458`	`7137`	`127262`	`2409733`	`47615756`
				`24`	`889`	`63600`	`6574092`	`807737754`
					`120`	`52759`	`46185656`	`57528166669`
						`720`	`4249084`	`53918229032`
							`5040`	`454920734`
								`40320`

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Last modified June 3 20:36 EDT 2024. Contains 373088 sequences. (Running on oeis4.)