A138015 - OEIS

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A138015 as a triangular array

1

1 1

1 2 1

1 2 2 1

1 2 4 2 1

1 2 4 4 2 1

1 2 4 10 4 2 1

1 2 4 10 10 4 2 1

1 2 4 10 34 10 4 2 1

1 2 4 10 34 34 10 4 2 1

1 2 4 10 34 154 34 10 4 2 1

1 2 4 10 34 154 154 34 10 4 2 1

A138015 as a square array

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
`1`	`2`	`2`	`2`	`2`	`2`	`2`	`2`	`2`	`2`	`2`
`1`	`2`	`4`	`4`	`4`	`4`	`4`	`4`	`4`	`4`
`1`	`2`	`4`	`10`	`10`	`10`	`10`	`10`	`10`
`1`	`2`	`4`	`10`	`34`	`34`	`34`	`34`
`1`	`2`	`4`	`10`	`34`	`154`	`154`
`1`	`2`	`4`	`10`	`34`	`154`
`1`	`2`	`4`	`10`	`34`
`1`	`2`	`4`	`10`
`1`	`2`	`4`
`1`	`2`
`1`

A138015 as an upper right triangle

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
	`1`	`2`	`2`	`2`	`2`	`2`	`2`	`2`	`2`	`2`	`2`
		`1`	`2`	`4`	`4`	`4`	`4`	`4`	`4`	`4`	`4`
			`1`	`2`	`4`	`10`	`10`	`10`	`10`	`10`	`10`
				`1`	`2`	`4`	`10`	`34`	`34`	`34`	`34`
					`1`	`2`	`4`	`10`	`34`	`154`	`154`
						`1`	`2`	`4`	`10`	`34`	`154`
							`1`	`2`	`4`	`10`	`34`
								`1`	`2`	`4`	`10`
									`1`	`2`	`4`
										`1`	`2`
											`1`

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Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)