A109449 - OEIS

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A109449 as a triangular array

1

1 1

1 2 1

2 3 3 1

5 8 6 4 1

16 25 20 10 5 1

61 96 75 40 15 6 1

272 427 336 175 70 21 7 1

1385 2176 1708 896 350 112 28 8 1

7936 12465 9792 5124 2016 630 168 36 9 1

50521 79360 62325 32640 12810 4032 1050 240 45 10 1

A109449 as a square array

`1`	`1`	`1`	`2`	`5`	`16`	`61`	`272`	`1385`	`7936`	`50521`
`1`	`2`	`3`	`8`	`25`	`96`	`427`	`2176`	`12465`	`79360`
`1`	`3`	`6`	`20`	`75`	`336`	`1708`	`9792`	`62325`
`1`	`4`	`10`	`40`	`175`	`896`	`5124`	`32640`
`1`	`5`	`15`	`70`	`350`	`2016`	`12810`
`1`	`6`	`21`	`112`	`630`	`4032`
`1`	`7`	`28`	`168`	`1050`
`1`	`8`	`36`	`240`
`1`	`9`	`45`
`1`	`10`
`1`

A109449 as an upper right triangle

`1`	`1`	`1`	`2`	`5`	`16`	`61`	`272`	`1385`	`7936`	`50521`
	`1`	`2`	`3`	`8`	`25`	`96`	`427`	`2176`	`12465`	`79360`
		`1`	`3`	`6`	`20`	`75`	`336`	`1708`	`9792`	`62325`
			`1`	`4`	`10`	`40`	`175`	`896`	`5124`	`32640`
				`1`	`5`	`15`	`70`	`350`	`2016`	`12810`
					`1`	`6`	`21`	`112`	`630`	`4032`
						`1`	`7`	`28`	`168`	`1050`
							`1`	`8`	`36`	`240`
								`1`	`9`	`45`
									`1`	`10`
										`1`

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Last modified May 13 17:28 EDT 2024. Contains 372522 sequences. (Running on oeis4.)