A102225 - OEIS

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A102225 as a triangular array

1

1 1

2 -1 1

3 -5 3 1

7 -20 19 -5 1

17 -51 57 -33 11 1

75 -289 438 -345 143 -21 1

346 -1426 2441 -2073 767 -97 43 1

4874 -22622 44289 -46156 26231 -7713 1183 -85 1

49047 -259734 530214 -520395 272461 -103617 30735 1119 171 1

3009094 -15968025 35495592

A102225 as a square array

`1`	`1`	`2`	`3`	`7`	`17`	`75`	`346`	`4874`	`49047`	`3009094`
`1`	`-1`	`-5`	`-20`	`-51`	`-289`	`-1426`	`-22622`	`-259734`	`-15968025`
`1`	`3`	`19`	`57`	`438`	`2441`	`44289`	`530214`	`35495592`
`1`	`-5`	`-33`	`-345`	`-2073`	`-46156`	`-520395`
`1`	`11`	`143`	`767`	`26231`	`272461`
`1`	`-21`	`-97`	`-7713`	`-103617`
`1`	`43`	`1183`	`30735`
`1`	`-85`	`1119`
`1`	`171`
`1`

A102225 as an upper right triangle

`1`	`1`	`2`	`3`	`7`	`17`	`75`	`346`	`4874`	`49047`	`3009094`
	`1`	`-1`	`-5`	`-20`	`-51`	`-289`	`-1426`	`-22622`	`-259734`	`-15968025`
		`1`	`3`	`19`	`57`	`438`	`2441`	`44289`	`530214`	`35495592`
			`1`	`-5`	`-33`	`-345`	`-2073`	`-46156`	`-520395`
				`1`	`11`	`143`	`767`	`26231`	`272461`
					`1`	`-21`	`-97`	`-7713`	`-103617`
						`1`	`43`	`1183`	`30735`
							`1`	`-85`	`1119`
								`1`	`171`
									`1`

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Last modified August 21 06:47 EDT 2024. Contains 375345 sequences. (Running on oeis4.)