A280440 - OEIS

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A280440 as a triangular array

0

0 0

1 4 1

2 10 10 2

5 20 21 20 5

10 38 42 42 38 10

20 68 77 80 77 68 20

38 120 136 138 138 136 120 38

71 208 236 232 225 232 236 208 71

130 358 404 386 360 360 386 404 358 130

235 612 687 640 574 548 574 640 687

A280440 as a square array

`0`	`0`	`1`	`2`	`5`	`10`	`20`	`38`	`71`	`130`	`235`
`0`	`4`	`10`	`20`	`38`	`68`	`120`	`208`	`358`	`612`
`1`	`10`	`21`	`42`	`77`	`136`	`236`	`404`	`687`
`2`	`20`	`42`	`80`	`138`	`232`	`386`	`640`
`5`	`38`	`77`	`138`	`225`	`360`	`574`
`10`	`68`	`136`	`232`	`360`	`548`
`20`	`120`	`236`	`386`	`574`
`38`	`208`	`404`	`640`
`71`	`358`	`687`
`130`

A280440 as an upper right triangle

`0`	`0`	`1`	`2`	`5`	`10`	`20`	`38`	`71`	`130`	`235`
	`0`	`4`	`10`	`20`	`38`	`68`	`120`	`208`	`358`	`612`
		`1`	`10`	`21`	`42`	`77`	`136`	`236`	`404`	`687`
			`2`	`20`	`42`	`80`	`138`	`232`	`386`	`640`
				`5`	`38`	`77`	`138`	`225`	`360`	`574`
					`10`	`68`	`136`	`232`	`360`	`548`
						`20`	`120`	`236`	`386`	`574`
							`38`	`208`	`404`	`640`
								`71`	`358`	`687`
									`130`

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Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)