A132731 - OEIS

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A132731 as a triangular array

1

1 1

1 2 1

1 4 4 1

1 6 10 6 1

1 8 18 18 8 1

1 10 28 38 28 10 1

1 12 40 68 68 40 12 1

1 14 54 110 138 110 54 14 1

1 16 70 166 250 250 166 70 16 1

1 18 88 238 418 502 418 238 88 18 1

A132731 as a square array

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
`1`	`2`	`4`	`6`	`8`	`10`	`12`	`14`	`16`	`18`
`1`	`4`	`10`	`18`	`28`	`40`	`54`	`70`	`88`
`1`	`6`	`18`	`38`	`68`	`110`	`166`	`238`
`1`	`8`	`28`	`68`	`138`	`250`	`418`
`1`	`10`	`40`	`110`	`250`	`502`
`1`	`12`	`54`	`166`	`418`
`1`	`14`	`70`	`238`
`1`	`16`	`88`
`1`	`18`
`1`

A132731 as an upper right triangle

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
	`1`	`2`	`4`	`6`	`8`	`10`	`12`	`14`	`16`	`18`
		`1`	`4`	`10`	`18`	`28`	`40`	`54`	`70`	`88`
			`1`	`6`	`18`	`38`	`68`	`110`	`166`	`238`
				`1`	`8`	`28`	`68`	`138`	`250`	`418`
					`1`	`10`	`40`	`110`	`250`	`502`
						`1`	`12`	`54`	`166`	`418`
							`1`	`14`	`70`	`238`
								`1`	`16`	`88`
									`1`	`18`
										`1`

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Last modified September 18 05:14 EDT 2024. Contains 375995 sequences. (Running on oeis4.)