A123519 - OEIS

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A123519 as a triangular array

1

1 2

1 6 4

1 12 20 8

1 20 60 56 16

1 30 140 224 144 32

1 42 280 672 720 352 64

1 56 504 1680 2640 2112 832 128

1 72 840 3696 7920 9152 5824 1920 256

1 90 1320 7392 20592 32032 29120 15360 4352 512

1 110 1980 13728 48048 96096 116480 87040 39168 9728 1024

A123519 as a square array

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
`2`	`6`	`12`	`20`	`30`	`42`	`56`	`72`	`90`	`110`
`4`	`20`	`60`	`140`	`280`	`504`	`840`	`1320`	`1980`
`8`	`56`	`224`	`672`	`1680`	`3696`	`7392`	`13728`
`16`	`144`	`720`	`2640`	`7920`	`20592`	`48048`
`32`	`352`	`2112`	`9152`	`32032`	`96096`
`64`	`832`	`5824`	`29120`	`116480`
`128`	`1920`	`15360`	`87040`
`256`	`4352`	`39168`
`512`	`9728`
`1024`

A123519 as an upper right triangle

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
	`2`	`6`	`12`	`20`	`30`	`42`	`56`	`72`	`90`	`110`
		`4`	`20`	`60`	`140`	`280`	`504`	`840`	`1320`	`1980`
			`8`	`56`	`224`	`672`	`1680`	`3696`	`7392`	`13728`
				`16`	`144`	`720`	`2640`	`7920`	`20592`	`48048`
					`32`	`352`	`2112`	`9152`	`32032`	`96096`
						`64`	`832`	`5824`	`29120`	`116480`
							`128`	`1920`	`15360`	`87040`
								`256`	`4352`	`39168`
									`512`	`9728`
										`1024`

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Last modified May 4 13:43 EDT 2024. Contains 372243 sequences. (Running on oeis4.)