A207228 - OEIS

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A207228 as a triangular array

3

9 9

23 81 23

61 529 529 61

161 3721 6819 3721 161

425 25921 100997 100997 25921 425

1121 180625 1482361 3447649 1482361 180625 1121

2957 1256641 21553541 115679881 115679881 21553541 1256641 2957

7801 8743849

A207228 as a square array

`3`	`9`	`23`	`61`	`161`	`425`	`1121`	`2957`	`7801`
`9`	`81`	`529`	`3721`	`25921`	`180625`	`1256641`	`8743849`
`23`	`529`	`6819`	`100997`	`1482361`	`21553541`
`61`	`3721`	`100997`	`3447649`	`115679881`
`161`	`25921`	`1482361`	`115679881`
`425`	`180625`	`21553541`
`1121`	`1256641`
`2957`

A207228 as an upper right triangle

`3`	`9`	`23`	`61`	`161`	`425`	`1121`	`2957`	`7801`
	`9`	`81`	`529`	`3721`	`25921`	`180625`	`1256641`	`8743849`
		`23`	`529`	`6819`	`100997`	`1482361`	`21553541`
			`61`	`3721`	`100997`	`3447649`	`115679881`
				`161`	`25921`	`1482361`	`115679881`
					`425`	`180625`	`21553541`
						`1121`	`1256641`
							`2957`

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Last modified May 14 04:15 EDT 2024. Contains 372528 sequences. (Running on oeis4.)