A338838 - OEIS

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A338838 as a triangular array

1

1 1

1 2 0

1 3 0 0

1 4 4 0 0

1 5 10 10 10 10

1 6 18 36 60 84 60

1 7 28 84 210 434 630 462

1 8 40 160 544 1552 3440 5168 3920

1 9 54 270 1170 4338 13158 30366 47178 36954

1 10 70 420 2220 10220 39780 125220 298060 476220 382740

A338838 as a square array

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
`1`	`2`	`3`	`4`	`5`	`6`	`7`	`8`	`9`	`10`
`0`	`0`	`4`	`10`	`18`	`28`	`40`	`54`	`70`
`0`	`0`	`10`	`36`	`84`	`160`	`270`	`420`
`0`	`10`	`60`	`210`	`544`	`1170`	`2220`
`10`	`84`	`434`	`1552`	`4338`	`10220`
`60`	`630`	`3440`	`13158`	`39780`
`462`	`5168`	`30366`	`125220`
`3920`	`47178`	`298060`
`36954`	`476220`
`382740`

A338838 as an upper right triangle

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
	`1`	`2`	`3`	`4`	`5`	`6`	`7`	`8`	`9`	`10`
		`0`	`0`	`4`	`10`	`18`	`28`	`40`	`54`	`70`
			`0`	`0`	`10`	`36`	`84`	`160`	`270`	`420`
				`0`	`10`	`60`	`210`	`544`	`1170`	`2220`
					`10`	`84`	`434`	`1552`	`4338`	`10220`
						`60`	`630`	`3440`	`13158`	`39780`
							`462`	`5168`	`30366`	`125220`
								`3920`	`47178`	`298060`
									`36954`	`476220`
										`382740`

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Last modified September 3 04:27 EDT 2024. Contains 375649 sequences. (Running on oeis4.)