A215631 - OEIS

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A215631 as a triangular array

3

7 12

13 19 27

21 28 37 48

31 39 49 61 75

43 52 63 76 91 108

57 67 79 93 109 127 147

73 84 97 112 129 148 169 192

91 103 117 133 151 171 193 217 243

111 124 139 156 175 196 219 244 271 300

133 147 163

A215631 as a square array

`3`	`7`	`13`	`21`	`31`	`43`	`57`	`73`	`91`	`111`	`133`
`12`	`19`	`28`	`39`	`52`	`67`	`84`	`103`	`124`	`147`
`27`	`37`	`49`	`63`	`79`	`97`	`117`	`139`	`163`
`48`	`61`	`76`	`93`	`112`	`133`	`156`
`75`	`91`	`109`	`129`	`151`	`175`
`108`	`127`	`148`	`171`	`196`
`147`	`169`	`193`	`219`
`192`	`217`	`244`
`243`	`271`
`300`

A215631 as an upper right triangle

`3`	`7`	`13`	`21`	`31`	`43`	`57`	`73`	`91`	`111`	`133`
	`12`	`19`	`28`	`39`	`52`	`67`	`84`	`103`	`124`	`147`
		`27`	`37`	`49`	`63`	`79`	`97`	`117`	`139`	`163`
			`48`	`61`	`76`	`93`	`112`	`133`	`156`
				`75`	`91`	`109`	`129`	`151`	`175`
					`108`	`127`	`148`	`171`	`196`
						`147`	`169`	`193`	`219`
							`192`	`217`	`244`
								`243`	`271`
									`300`

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Last modified April 24 07:54 EDT 2024. Contains 371922 sequences. (Running on oeis4.)