A159040 - OEIS

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A159040 as a triangular array

1

1 1

1 -4 1

1 -6 -6 1

1 -8 11 -8 1

1 -10 19 19 -10 1

1 -12 29 -40 29 -12 1

1 -14 41 -70 -70 41 -14 1

1 -16 55 -112 139 -112 55 -16 1

1 -18 71 -168 251 251 -168 71 -18 1

1 -20 89 -240 419 -504 419 -240 89 -20 1

A159040 as a square array

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
`1`	`-4`	`-6`	`-8`	`-10`	`-12`	`-14`	`-16`	`-18`	`-20`
`1`	`-6`	`11`	`19`	`29`	`41`	`55`	`71`	`89`
`1`	`-8`	`19`	`-40`	`-70`	`-112`	`-168`	`-240`
`1`	`-10`	`29`	`-70`	`139`	`251`	`419`
`1`	`-12`	`41`	`-112`	`251`	`-504`
`1`	`-14`	`55`	`-168`	`419`
`1`	`-16`	`71`	`-240`
`1`	`-18`	`89`
`1`	`-20`
`1`

A159040 as an upper right triangle

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
	`1`	`-4`	`-6`	`-8`	`-10`	`-12`	`-14`	`-16`	`-18`	`-20`
		`1`	`-6`	`11`	`19`	`29`	`41`	`55`	`71`	`89`
			`1`	`-8`	`19`	`-40`	`-70`	`-112`	`-168`	`-240`
				`1`	`-10`	`29`	`-70`	`139`	`251`	`419`
					`1`	`-12`	`41`	`-112`	`251`	`-504`
						`1`	`-14`	`55`	`-168`	`419`
							`1`	`-16`	`71`	`-240`
								`1`	`-18`	`89`
									`1`	`-20`
										`1`

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Last modified May 8 11:54 EDT 2024. Contains 372332 sequences. (Running on oeis4.)