A067640 - OEIS

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A067640 as a triangular array

1

2 2

8 20 10

42 174 210 70

260 1504 2992 2352 588

1796 13300 37100 47820 27720 5544

13396 120744 433620 784672 742296 339768 56628

105706 1122198 4928798 11515714 15294006 11376554 4294290

A067640 as a square array

`1`	`2`	`8`	`42`	`260`	`1796`	`13396`	`105706`
`2`	`20`	`174`	`1504`	`13300`	`120744`	`1122198`
`10`	`210`	`2992`	`37100`	`433620`	`4928798`
`70`	`2352`	`47820`	`784672`	`11515714`
`588`	`27720`	`742296`	`15294006`
`5544`	`339768`	`11376554`
`56628`	`4294290`

A067640 as an upper right triangle

`1`	`2`	`8`	`42`	`260`	`1796`	`13396`	`105706`
	`2`	`20`	`174`	`1504`	`13300`	`120744`	`1122198`
		`10`	`210`	`2992`	`37100`	`433620`	`4928798`
			`70`	`2352`	`47820`	`784672`	`11515714`
				`588`	`27720`	`742296`	`15294006`
					`5544`	`339768`	`11376554`
						`56628`	`4294290`

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Last modified April 23 11:35 EDT 2024. Contains 371912 sequences. (Running on oeis4.)