A216460 - OEIS

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A216460 as a triangular array

1

1 1

1 1 2

1 1 2 2

2 2 7 5 5

2 5 15 20 15 5

5 15 203 203 322 52 15

5 52 716 3429 4140 1335 203 15

15 203 17733 83440 580479 115975 36401 877 52

15 877 83440 2711768 18171918 20880505 4213597 192713 4140 52

52

A216460 as a square array

`1`	`1`	`1`	`1`	`2`	`2`	`5`	`5`	`15`	`15`	`52`
`1`	`1`	`1`	`2`	`5`	`15`	`52`	`203`	`877`
`2`	`2`	`7`	`15`	`203`	`716`	`17733`	`83440`
`2`	`5`	`20`	`203`	`3429`	`83440`	`2711768`
`5`	`15`	`322`	`4140`	`580479`	`18171918`
`5`	`52`	`1335`	`115975`	`20880505`
`15`	`203`	`36401`	`4213597`
`15`	`877`	`192713`
`52`	`4140`
`52`

A216460 as an upper right triangle

`1`	`1`	`1`	`1`	`2`	`2`	`5`	`5`	`15`	`15`	`52`
	`1`	`1`	`1`	`2`	`5`	`15`	`52`	`203`	`877`
		`2`	`2`	`7`	`15`	`203`	`716`	`17733`	`83440`
			`2`	`5`	`20`	`203`	`3429`	`83440`	`2711768`
				`5`	`15`	`322`	`4140`	`580479`	`18171918`
					`5`	`52`	`1335`	`115975`	`20880505`
						`15`	`203`	`36401`	`4213597`
							`15`	`877`	`192713`
								`52`	`4140`
									`52`

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Last modified May 21 22:16 EDT 2024. Contains 372741 sequences. (Running on oeis4.)