A139526 - OEIS

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A139526 as a triangular array

1

1 2

1 6 9

1 12 48 64

1 20 150 500 625

1 30 360 2160 6480 7776

1 42 735 6860 36015 100842 117649

1 56 1344 17920 143360 688128 1835008 2097152

1 72 2268 40824 459270 3306744 14880348 38263752 43046721

1 90 3600 84000 1260000 12600000 84000000 360000000 900000000 1000000000

A139526 as a square array

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
`2`	`6`	`12`	`20`	`30`	`42`	`56`	`72`	`90`
`9`	`48`	`150`	`360`	`735`	`1344`	`2268`	`3600`
`64`	`500`	`2160`	`6860`	`17920`	`40824`	`84000`
`625`	`6480`	`36015`	`143360`	`459270`	`1260000`
`7776`	`100842`	`688128`	`3306744`	`12600000`
`117649`	`1835008`	`14880348`	`84000000`
`2097152`	`38263752`	`360000000`
`43046721`	`900000000`
`1000000000`

A139526 as an upper right triangle

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
	`2`	`6`	`12`	`20`	`30`	`42`	`56`	`72`	`90`
		`9`	`48`	`150`	`360`	`735`	`1344`	`2268`	`3600`
			`64`	`500`	`2160`	`6860`	`17920`	`40824`	`84000`
				`625`	`6480`	`36015`	`143360`	`459270`	`1260000`
					`7776`	`100842`	`688128`	`3306744`	`12600000`
						`117649`	`1835008`	`14880348`	`84000000`
							`2097152`	`38263752`	`360000000`
								`43046721`	`900000000`
									`1000000000`

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Last modified May 14 21:33 EDT 2024. Contains 372533 sequences. (Running on oeis4.)