A247497 - OEIS

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A247497 as a triangular array

1

1 1

2 3 2

4 10 12 6

9 33 62 60 24

21 111 300 450 360 120

51 378 1412 3000 3720 2520 720

127 1303 6552 18816 32760 34440 20160 5040

323 4539 30186 113820 264264 388080 352800 181440 40320

A247497 as a square array

`1`	`1`	`2`	`4`	`9`	`21`	`51`	`127`	`323`
`1`	`3`	`10`	`33`	`111`	`378`	`1303`	`4539`
`2`	`12`	`62`	`300`	`1412`	`6552`	`30186`
`6`	`60`	`450`	`3000`	`18816`	`113820`
`24`	`360`	`3720`	`32760`	`264264`
`120`	`2520`	`34440`	`388080`
`720`	`20160`	`352800`
`5040`	`181440`
`40320`

A247497 as an upper right triangle

`1`	`1`	`2`	`4`	`9`	`21`	`51`	`127`	`323`
	`1`	`3`	`10`	`33`	`111`	`378`	`1303`	`4539`
		`2`	`12`	`62`	`300`	`1412`	`6552`	`30186`
			`6`	`60`	`450`	`3000`	`18816`	`113820`
				`24`	`360`	`3720`	`32760`	`264264`
					`120`	`2520`	`34440`	`388080`
						`720`	`20160`	`352800`
							`5040`	`181440`
								`40320`

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Last modified April 19 21:09 EDT 2024. Contains 371798 sequences. (Running on oeis4.)