A047921 - OEIS

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A047921 as a triangular array

1

1 2

5 1 21

2 1 106 11

2 1 643 62 12

2 1 4547 406 71 13

2 1 36696 3046 481 80 14

2 1 332769 25737 3708 559 89 15

2 1 3349507 242094 32028 4414 640 98 16

2 1 37054436 2510733 306723 38893 5164 724 107 17

2 1

A047921 as a square array

`1`	`1`	`5`	`2`	`2`	`2`	`2`	`2`	`2`	`2`	`2`
`2`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
`21`	`106`	`643`	`4547`	`36696`	`332769`	`3349507`	`37054436`
`11`	`62`	`406`	`3046`	`25737`	`242094`	`2510733`
`12`	`71`	`481`	`3708`	`32028`	`306723`
`13`	`80`	`559`	`4414`	`38893`
`14`	`89`	`640`	`5164`
`15`	`98`	`724`
`16`	`107`
`17`

A047921 as an upper right triangle

`1`	`1`	`5`	`2`	`2`	`2`	`2`	`2`	`2`	`2`	`2`
	`2`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
		`21`	`106`	`643`	`4547`	`36696`	`332769`	`3349507`	`37054436`
			`11`	`62`	`406`	`3046`	`25737`	`242094`	`2510733`
				`12`	`71`	`481`	`3708`	`32028`	`306723`
					`13`	`80`	`559`	`4414`	`38893`
						`14`	`89`	`640`	`5164`
							`15`	`98`	`724`
								`16`	`107`
									`17`

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Last modified April 17 21:22 EDT 2024. Contains 371767 sequences. (Running on oeis4.)