A104990 - OEIS

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A104990 as a triangular array

1

3 1

15 6 1

93 39 9 1

675 285 75 12 1

5577 2331 657 123 15 1

51555 21153 6207 1269 183 18 1

526809 211227 63549 13743 2181 255 21 1

5895819 2304321 704319 158325 26739 3453 339 24 1

71733585 27291843 8424813 1947711 343641 47355 5145 435 27 1

A104990 as a square array

`1`	`3`	`15`	`93`	`675`	`5577`	`51555`	`526809`	`5895819`	`71733585`
`1`	`6`	`39`	`285`	`2331`	`21153`	`211227`	`2304321`	`27291843`
`1`	`9`	`75`	`657`	`6207`	`63549`	`704319`	`8424813`
`1`	`12`	`123`	`1269`	`13743`	`158325`	`1947711`
`1`	`15`	`183`	`2181`	`26739`	`343641`
`1`	`18`	`255`	`3453`	`47355`
`1`	`21`	`339`	`5145`
`1`	`24`	`435`
`1`	`27`
`1`

A104990 as an upper right triangle

`1`	`3`	`15`	`93`	`675`	`5577`	`51555`	`526809`	`5895819`	`71733585`
	`1`	`6`	`39`	`285`	`2331`	`21153`	`211227`	`2304321`	`27291843`
		`1`	`9`	`75`	`657`	`6207`	`63549`	`704319`	`8424813`
			`1`	`12`	`123`	`1269`	`13743`	`158325`	`1947711`
				`1`	`15`	`183`	`2181`	`26739`	`343641`
					`1`	`18`	`255`	`3453`	`47355`
						`1`	`21`	`339`	`5145`
							`1`	`24`	`435`
								`1`	`27`
									`1`

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Last modified April 19 18:05 EDT 2024. Contains 371798 sequences. (Running on oeis4.)