A216219 - OEIS

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A216219 as a triangular array

1

1 1

1 2 1

1 3 3 1

1 4 6 4 1

0 5 10 10 5 0

0 5 15 20 15 5 0

0 0 20 35 35 20 0 0

0 0 20 55 70 55 20 0 0

0 0 0 75 125 125 75 0 0 0

0 0 0 75 200 250 200

A216219 as a square array

`1`	`1`	`1`	`1`	`1`	`0`	`0`	`0`	`0`	`0`	`0`
`1`	`2`	`3`	`4`	`5`	`5`	`0`	`0`	`0`	`0`
`1`	`3`	`6`	`10`	`15`	`20`	`20`	`0`	`0`
`1`	`4`	`10`	`20`	`35`	`55`	`75`	`75`
`1`	`5`	`15`	`35`	`70`	`125`	`200`
`0`	`5`	`20`	`55`	`125`	`250`
`0`	`0`	`20`	`75`	`200`
`0`	`0`	`0`
`0`	`0`
`0`

A216219 as an upper right triangle

`1`	`1`	`1`	`1`	`1`	`0`	`0`	`0`	`0`	`0`	`0`
	`1`	`2`	`3`	`4`	`5`	`5`	`0`	`0`	`0`	`0`
		`1`	`3`	`6`	`10`	`15`	`20`	`20`	`0`	`0`
			`1`	`4`	`10`	`20`	`35`	`55`	`75`	`75`
				`1`	`5`	`15`	`35`	`70`	`125`	`200`
					`0`	`5`	`20`	`55`	`125`	`250`
						`0`	`0`	`20`	`75`	`200`
							`0`	`0`	`0`
								`0`	`0`
									`0`

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Last modified April 19 16:21 EDT 2024. Contains 371794 sequences. (Running on oeis4.)