A124550 - OEIS

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A124550 as a triangular array

1

1 0

1 1 0

1 2 2 0

1 3 7 5 0

1 4 15 30 16 0

1 5 26 91 159 66 0

1 6 40 204 666 1056 348 0

1 7 57 385 1899 5955 8812 2321 0

1 8 77 650 4345 21180 65794 92062 19437 0

1 9 100 1015 8616 57876 287568 901881

A124550 as a square array

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
`0`	`1`	`2`	`3`	`4`	`5`	`6`	`7`	`8`	`9`
`0`	`2`	`7`	`15`	`26`	`40`	`57`	`77`	`100`
`0`	`5`	`30`	`91`	`204`	`385`	`650`	`1015`
`0`	`16`	`159`	`666`	`1899`	`4345`	`8616`
`0`	`66`	`1056`	`5955`	`21180`	`57876`
`0`	`348`	`8812`	`65794`	`287568`
`0`	`2321`	`92062`	`901881`
`0`	`19437`
`0`

A124550 as an upper right triangle

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
	`0`	`1`	`2`	`3`	`4`	`5`	`6`	`7`	`8`	`9`
		`0`	`2`	`7`	`15`	`26`	`40`	`57`	`77`	`100`
			`0`	`5`	`30`	`91`	`204`	`385`	`650`	`1015`
				`0`	`16`	`159`	`666`	`1899`	`4345`	`8616`
					`0`	`66`	`1056`	`5955`	`21180`	`57876`
						`0`	`348`	`8812`	`65794`	`287568`
							`0`	`2321`	`92062`	`901881`
								`0`	`19437`
									`0`

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Last modified April 23 09:22 EDT 2024. Contains 371905 sequences. (Running on oeis4.)