A221269 - OEIS

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A221269 as a triangular array

1

3 3

7 19 7

17 141 141 17

41 1073 3119 1073 41

99 8203 71977 71977 8203 99

239 62771 1688295 5007745 1688295 62771 239

577 480437 39832247 355645325 355645325 39832247 480437 577

1393 3677345 941623211

A221269 as a square array

`1`	`3`	`7`	`17`	`41`	`99`	`239`	`577`	`1393`
`3`	`19`	`141`	`1073`	`8203`	`62771`	`480437`	`3677345`
`7`	`141`	`3119`	`71977`	`1688295`	`39832247`	`941623211`
`17`	`1073`	`71977`	`5007745`	`355645325`
`41`	`8203`	`1688295`	`355645325`
`99`	`62771`	`39832247`
`239`	`480437`
`577`

A221269 as an upper right triangle

`1`	`3`	`7`	`17`	`41`	`99`	`239`	`577`	`1393`
	`3`	`19`	`141`	`1073`	`8203`	`62771`	`480437`	`3677345`
		`7`	`141`	`3119`	`71977`	`1688295`	`39832247`	`941623211`
			`17`	`1073`	`71977`	`5007745`	`355645325`
				`41`	`8203`	`1688295`	`355645325`
					`99`	`62771`	`39832247`
						`239`	`480437`
							`577`

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Last modified May 2 04:48 EDT 2024. Contains 372178 sequences. (Running on oeis4.)