A111578 - OEIS

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A111578 as a triangular array

1

1 1

1 6 1

1 31 15 1

1 156 166 28 1

1 781 1650 530 45 1

1 3906 15631 8540 1295 66 1

1 19531 144585 126651 30555 2681 91 1

1 97656 1320796 1791048 646086 86856 4956 120 1

1 488281 11984820 24604420 12774510

A111578 as a square array

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
`1`	`6`	`31`	`156`	`781`	`3906`	`19531`	`97656`	`488281`
`1`	`15`	`166`	`1650`	`15631`	`144585`	`1320796`	`11984820`
`1`	`28`	`530`	`8540`	`126651`	`1791048`	`24604420`
`1`	`45`	`1295`	`30555`	`646086`	`12774510`
`1`	`66`	`2681`	`86856`
`1`	`91`	`4956`
`1`	`120`
`1`

A111578 as an upper right triangle

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
	`1`	`6`	`31`	`156`	`781`	`3906`	`19531`	`97656`	`488281`
		`1`	`15`	`166`	`1650`	`15631`	`144585`	`1320796`	`11984820`
			`1`	`28`	`530`	`8540`	`126651`	`1791048`	`24604420`
				`1`	`45`	`1295`	`30555`	`646086`	`12774510`
					`1`	`66`	`2681`	`86856`
						`1`	`91`	`4956`
							`1`	`120`
								`1`

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Last modified June 11 07:47 EDT 2024. Contains 373291 sequences. (Running on oeis4.)