A071949 - OEIS

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A071949 as a triangular array

1

1 2

1 4 10

1 6 24 66

1 8 42 172 498

1 10 64 326 1360 4066

1 12 90 536 2706 11444 34970

1 14 120 810 4672 23526 100520 312066

1 16 154 1156 7410 42024 211546 911068 2862562

1 18 192 1582 11088 69002 387456 1951494 8457504 26824386

A071949 as a square array

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
`2`	`4`	`6`	`8`	`10`	`12`	`14`	`16`	`18`
`10`	`24`	`42`	`64`	`90`	`120`	`154`	`192`
`66`	`172`	`326`	`536`	`810`	`1156`	`1582`
`498`	`1360`	`2706`	`4672`	`7410`	`11088`
`4066`	`11444`	`23526`	`42024`	`69002`
`34970`	`100520`	`211546`	`387456`
`312066`	`911068`	`1951494`
`2862562`	`8457504`
`26824386`

A071949 as an upper right triangle

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
	`2`	`4`	`6`	`8`	`10`	`12`	`14`	`16`	`18`
		`10`	`24`	`42`	`64`	`90`	`120`	`154`	`192`
			`66`	`172`	`326`	`536`	`810`	`1156`	`1582`
				`498`	`1360`	`2706`	`4672`	`7410`	`11088`
					`4066`	`11444`	`23526`	`42024`	`69002`
						`34970`	`100520`	`211546`	`387456`
							`312066`	`911068`	`1951494`
								`2862562`	`8457504`
									`26824386`

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Last modified April 19 04:12 EDT 2024. Contains 371782 sequences. (Running on oeis4.)