A209418 - OEIS

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A209418 as a triangular array

1

1 3

1 4 7

1 7 13 15

1 8 30 38 31

1 11 42 104 103 63

1 12 69 178 321 264 127

1 15 87 331 657 921 649 255

1 16 124 484 1354 2200 2512 1546 511

1 19 148 760 2266 4978 6856 6598 3595 1023

1 20 195 1020 3870 9384 16938 20226 16827 8204 2047

A209418 as a square array

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
`3`	`4`	`7`	`8`	`11`	`12`	`15`	`16`	`19`	`20`
`7`	`13`	`30`	`42`	`69`	`87`	`124`	`148`	`195`
`15`	`38`	`104`	`178`	`331`	`484`	`760`	`1020`
`31`	`103`	`321`	`657`	`1354`	`2266`	`3870`
`63`	`264`	`921`	`2200`	`4978`	`9384`
`127`	`649`	`2512`	`6856`	`16938`
`255`	`1546`	`6598`	`20226`
`511`	`3595`	`16827`
`1023`	`8204`
`2047`

A209418 as an upper right triangle

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
	`3`	`4`	`7`	`8`	`11`	`12`	`15`	`16`	`19`	`20`
		`7`	`13`	`30`	`42`	`69`	`87`	`124`	`148`	`195`
			`15`	`38`	`104`	`178`	`331`	`484`	`760`	`1020`
				`31`	`103`	`321`	`657`	`1354`	`2266`	`3870`
					`63`	`264`	`921`	`2200`	`4978`	`9384`
						`127`	`649`	`2512`	`6856`	`16938`
							`255`	`1546`	`6598`	`20226`
								`511`	`3595`	`16827`
									`1023`	`8204`
										`2047`

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Last modified April 25 01:35 EDT 2024. Contains 371964 sequences. (Running on oeis4.)