A138947 - OEIS

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A138947 as a triangular array

1

4 2

6 7 3

8 13 17 5

9 19 41 59 11

10 23 67 179 277 31

12 29 83 331 1063 1787 127

14 37 109 431 2221 8527 15299 709

15 43 157 599 3001 19577 87803

A138947 as a square array

`1`	`4`	`6`	`8`	`9`	`10`	`12`	`14`	`15`
`2`	`7`	`13`	`19`	`23`	`29`	`37`	`43`
`3`	`17`	`41`	`67`	`83`	`109`	`157`
`5`	`59`	`179`	`331`	`431`	`599`
`11`	`277`	`1063`	`2221`	`3001`
`31`	`1787`	`8527`	`19577`
`127`	`15299`	`87803`
`709`

A138947 as an upper right triangle

`1`	`4`	`6`	`8`	`9`	`10`	`12`	`14`	`15`
	`2`	`7`	`13`	`19`	`23`	`29`	`37`	`43`
		`3`	`17`	`41`	`67`	`83`	`109`	`157`
			`5`	`59`	`179`	`331`	`431`	`599`
				`11`	`277`	`1063`	`2221`	`3001`
					`31`	`1787`	`8527`	`19577`
						`127`	`15299`	`87803`
							`709`

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Last modified April 23 13:11 EDT 2024. Contains 371913 sequences. (Running on oeis4.)