A218426 - OEIS

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A218426 as a triangular array

1

3 3

5 13 5

9 49 49 9

17 191 357 191 17

31 737 2725 2725 737 31

57 2849 20793 41515 20793 2849 57

105 11011 158429 629659 629659 158429 11011 105

193 42557 1207525 9539915 19003811 9539915 1207525 42557 193

A218426 as a square array

`1`	`3`	`5`	`9`	`17`	`31`	`57`	`105`	`193`
`3`	`13`	`49`	`191`	`737`	`2849`	`11011`	`42557`
`5`	`49`	`357`	`2725`	`20793`	`158429`	`1207525`
`9`	`191`	`2725`	`41515`	`629659`	`9539915`
`17`	`737`	`20793`	`629659`	`19003811`
`31`	`2849`	`158429`	`9539915`
`57`	`11011`	`1207525`
`105`	`42557`
`193`

A218426 as an upper right triangle

`1`	`3`	`5`	`9`	`17`	`31`	`57`	`105`	`193`
	`3`	`13`	`49`	`191`	`737`	`2849`	`11011`	`42557`
		`5`	`49`	`357`	`2725`	`20793`	`158429`	`1207525`
			`9`	`191`	`2725`	`41515`	`629659`	`9539915`
				`17`	`737`	`20793`	`629659`	`19003811`
					`31`	`2849`	`158429`	`9539915`
						`57`	`11011`	`1207525`
							`105`	`42557`
								`193`

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Last modified May 4 06:11 EDT 2024. Contains 372230 sequences. (Running on oeis4.)