A206987 - OEIS

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A206987 as a triangular array

2

4 4

6 16 6

10 36 36 10

16 100 58 100 16

26 256 158 158 256 26

42 676 420 556 420 676 42

68 1764 1066 1866 1866 1066 1764 68

110 4624 2754 5804 7500 5804 2754 4624 110

178 12100 7140 18528 27762 27762 18528

A206987 as a square array

`2`	`4`	`6`	`10`	`16`	`26`	`42`	`68`	`110`	`178`
`4`	`16`	`36`	`100`	`256`	`676`	`1764`	`4624`	`12100`
`6`	`36`	`58`	`158`	`420`	`1066`	`2754`	`7140`
`10`	`100`	`158`	`556`	`1866`	`5804`	`18528`
`16`	`256`	`420`	`1866`	`7500`	`27762`
`26`	`676`	`1066`	`5804`	`27762`
`42`	`1764`	`2754`	`18528`
`68`	`4624`
`110`

A206987 as an upper right triangle

`2`	`4`	`6`	`10`	`16`	`26`	`42`	`68`	`110`	`178`
	`4`	`16`	`36`	`100`	`256`	`676`	`1764`	`4624`	`12100`
		`6`	`36`	`58`	`158`	`420`	`1066`	`2754`	`7140`
			`10`	`100`	`158`	`556`	`1866`	`5804`	`18528`
				`16`	`256`	`420`	`1866`	`7500`	`27762`
					`26`	`676`	`1066`	`5804`	`27762`
						`42`	`1764`	`2754`	`18528`
							`68`	`4624`
								`110`

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Last modified April 25 03:15 EDT 2024. Contains 371964 sequences. (Running on oeis4.)