A278807 - OEIS

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A278807 as a triangular array

3

6 6

10 22 10

15 63 63 15

21 154 322 154 21

28 336 1439 1439 336 28

36 672 5767 12958 5767 672 36

45 1254 20972 110455 110455 20972 1254 45

55 2211 69834 870473 2179956 870473 69834 2211 55

66 3718 214774 6275546

A278807 as a square array

`3`	`6`	`10`	`15`	`21`	`28`	`36`	`45`	`55`	`66`
`6`	`22`	`63`	`154`	`336`	`672`	`1254`	`2211`	`3718`
`10`	`63`	`322`	`1439`	`5767`	`20972`	`69834`	`214774`
`15`	`154`	`1439`	`12958`	`110455`	`870473`	`6275546`
`21`	`336`	`5767`	`110455`	`2179956`
`28`	`672`	`20972`	`870473`
`36`	`1254`	`69834`
`45`	`2211`
`55`

A278807 as an upper right triangle

`3`	`6`	`10`	`15`	`21`	`28`	`36`	`45`	`55`	`66`
	`6`	`22`	`63`	`154`	`336`	`672`	`1254`	`2211`	`3718`
		`10`	`63`	`322`	`1439`	`5767`	`20972`	`69834`	`214774`
			`15`	`154`	`1439`	`12958`	`110455`	`870473`	`6275546`
				`21`	`336`	`5767`	`110455`	`2179956`
					`28`	`672`	`20972`	`870473`
						`36`	`1254`	`69834`
							`45`	`2211`
								`55`

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Last modified August 16 18:10 EDT 2024. Contains 375177 sequences. (Running on oeis4.)