A222405 - OEIS

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A222405 as a triangular array

1

3 3

7 6 7

13 13 13 13

21 26 26 26 21

31 47 52 52 47 31

43 78 99 104 99 78 43

57 121 177 203 203 177 121 57

73 178 298 380 406 380 298 178 73

91 251 476 678 786 786 678 476 251 91

111 342 727 1154 1464 1572 1464 1154 727 342 111

A222405 as a square array

`1`	`3`	`7`	`13`	`21`	`31`	`43`	`57`	`73`	`91`	`111`
`3`	`6`	`13`	`26`	`47`	`78`	`121`	`178`	`251`	`342`
`7`	`13`	`26`	`52`	`99`	`177`	`298`	`476`	`727`
`13`	`26`	`52`	`104`	`203`	`380`	`678`	`1154`
`21`	`47`	`99`	`203`	`406`	`786`	`1464`
`31`	`78`	`177`	`380`	`786`	`1572`
`43`	`121`	`298`	`678`	`1464`
`57`	`178`	`476`	`1154`
`73`	`251`	`727`
`91`	`342`
`111`

A222405 as an upper right triangle

`1`	`3`	`7`	`13`	`21`	`31`	`43`	`57`	`73`	`91`	`111`
	`3`	`6`	`13`	`26`	`47`	`78`	`121`	`178`	`251`	`342`
		`7`	`13`	`26`	`52`	`99`	`177`	`298`	`476`	`727`
			`13`	`26`	`52`	`104`	`203`	`380`	`678`	`1154`
				`21`	`47`	`99`	`203`	`406`	`786`	`1464`
					`31`	`78`	`177`	`380`	`786`	`1572`
						`43`	`121`	`298`	`678`	`1464`
							`57`	`178`	`476`	`1154`
								`73`	`251`	`727`
									`91`	`342`
										`111`

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Last modified April 24 15:37 EDT 2024. Contains 371960 sequences. (Running on oeis4.)