A131909 - OEIS

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A131909 as a triangular array

1

1 1

1 1 2

2 1 2 3

3 2 3 3 5

5 3 5 5 6 8

8 5 8 8 10 11 14

14 8 13 13 16 18 21 25

25 14 22 21 26 29 34 39 46

46 25 39 36 43 47 55 63 73 85

85 46 71 64 75 79 90 102 118 136 158

158 85 131 117 135 139 154 169

A131909 as a square array

`1`	`1`	`1`	`2`	`3`	`5`	`8`	`14`	`25`	`46`	`85`	`158`
`1`	`1`	`1`	`2`	`3`	`5`	`8`	`14`	`25`	`46`	`85`
`2`	`2`	`3`	`5`	`8`	`13`	`22`	`39`	`71`	`131`
`3`	`3`	`5`	`8`	`13`	`21`	`36`	`64`	`117`
`5`	`6`	`10`	`16`	`26`	`43`	`75`	`135`
`8`	`11`	`18`	`29`	`47`	`79`	`139`
`14`	`21`	`34`	`55`	`90`	`154`
`25`	`39`	`63`	`102`	`169`
`46`	`73`	`118`
`85`	`136`
`158`

A131909 as an upper right triangle

`1`	`1`	`1`	`2`	`3`	`5`	`8`	`14`	`25`	`46`	`85`	`158`
	`1`	`1`	`1`	`2`	`3`	`5`	`8`	`14`	`25`	`46`	`85`
		`2`	`2`	`3`	`5`	`8`	`13`	`22`	`39`	`71`	`131`
			`3`	`3`	`5`	`8`	`13`	`21`	`36`	`64`	`117`
				`5`	`6`	`10`	`16`	`26`	`43`	`75`	`135`
					`8`	`11`	`18`	`29`	`47`	`79`	`139`
						`14`	`21`	`34`	`55`	`90`	`154`
							`25`	`39`	`63`	`102`	`169`
								`46`	`73`	`118`
									`85`	`136`
										`158`

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Last modified April 18 18:58 EDT 2024. Contains 371781 sequences. (Running on oeis4.)