A199943 - OEIS

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A199943 as a triangular array

2

4 2

6 12 2

8 30 36 2

10 56 142 104 2

12 90 376 660 302 2

14 132 778 2474 3042 868 2

16 182 1404 6604 16114 13890 2490 2

18 240 2294 14696 55540 104268 63260 7132 2

20 306 3504 28490 152586 464782 672866 287514

A199943 as a square array

`2`	`4`	`6`	`8`	`10`	`12`	`14`	`16`	`18`	`20`
`2`	`12`	`30`	`56`	`90`	`132`	`182`	`240`	`306`
`2`	`36`	`142`	`376`	`778`	`1404`	`2294`	`3504`
`2`	`104`	`660`	`2474`	`6604`	`14696`	`28490`
`2`	`302`	`3042`	`16114`	`55540`	`152586`
`2`	`868`	`13890`	`104268`	`464782`
`2`	`2490`	`63260`	`672866`
`2`	`7132`	`287514`
`2`

A199943 as an upper right triangle

`2`	`4`	`6`	`8`	`10`	`12`	`14`	`16`	`18`	`20`
	`2`	`12`	`30`	`56`	`90`	`132`	`182`	`240`	`306`
		`2`	`36`	`142`	`376`	`778`	`1404`	`2294`	`3504`
			`2`	`104`	`660`	`2474`	`6604`	`14696`	`28490`
				`2`	`302`	`3042`	`16114`	`55540`	`152586`
					`2`	`868`	`13890`	`104268`	`464782`
						`2`	`2490`	`63260`	`672866`
							`2`	`7132`	`287514`
								`2`

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Last modified April 18 03:33 EDT 2024. Contains 371767 sequences. (Running on oeis4.)