A228550 - OEIS

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A228550 as a triangular array

1

0 1

1 0 1

3 4 0 1

38 15 10 0 1

720 238 45 20 0 1

26614 5145 868 105 35 0 1

1858122 215355 21000 2408 210 56 0 1

250586792 16797942 980371 64260 5628 378 84 0 1

66121926720 2509697144 84370230 3306415 163800 11676 630 120 0 1

A228550 as a square array

`1`	`0`	`1`	`3`	`38`	`720`	`26614`	`1858122`	`250586792`	`66121926720`
`1`	`0`	`4`	`15`	`238`	`5145`	`215355`	`16797942`	`2509697144`
`1`	`0`	`10`	`45`	`868`	`21000`	`980371`	`84370230`
`1`	`0`	`20`	`105`	`2408`	`64260`	`3306415`
`1`	`0`	`35`	`210`	`5628`	`163800`
`1`	`0`	`56`	`378`	`11676`
`1`	`0`	`84`	`630`
`1`	`0`	`120`
`1`	`0`
`1`

A228550 as an upper right triangle

`1`	`0`	`1`	`3`	`38`	`720`	`26614`	`1858122`	`250586792`	`66121926720`
	`1`	`0`	`4`	`15`	`238`	`5145`	`215355`	`16797942`	`2509697144`
		`1`	`0`	`10`	`45`	`868`	`21000`	`980371`	`84370230`
			`1`	`0`	`20`	`105`	`2408`	`64260`	`3306415`
				`1`	`0`	`35`	`210`	`5628`	`163800`
					`1`	`0`	`56`	`378`	`11676`
						`1`	`0`	`84`	`630`
							`1`	`0`	`120`
								`1`	`0`
									`1`

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Last modified June 6 09:48 EDT 2024. Contains 373125 sequences. (Running on oeis4.)