A252820 - OEIS

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A252820 as a triangular array

1

2 2

4 6 4

7 17 17 7

11 40 63 40 11

16 81 187 187 81 16

22 147 468 684 468 147 22

29 246 1032 2078 2078 1032 246 29

37 387 2067 5490 7564 5490 2067 387 37

46 580 3840 13015 23664 23664 13015 3840 580 46

56 836 6716

A252820 as a square array

`1`	`2`	`4`	`7`	`11`	`16`	`22`	`29`	`37`	`46`	`56`
`2`	`6`	`17`	`40`	`81`	`147`	`246`	`387`	`580`	`836`
`4`	`17`	`63`	`187`	`468`	`1032`	`2067`	`3840`	`6716`
`7`	`40`	`187`	`684`	`2078`	`5490`	`13015`
`11`	`81`	`468`	`2078`	`7564`	`23664`
`16`	`147`	`1032`	`5490`	`23664`
`22`	`246`	`2067`	`13015`
`29`	`387`	`3840`
`37`	`580`
`46`

A252820 as an upper right triangle

`1`	`2`	`4`	`7`	`11`	`16`	`22`	`29`	`37`	`46`	`56`
	`2`	`6`	`17`	`40`	`81`	`147`	`246`	`387`	`580`	`836`
		`4`	`17`	`63`	`187`	`468`	`1032`	`2067`	`3840`	`6716`
			`7`	`40`	`187`	`684`	`2078`	`5490`	`13015`
				`11`	`81`	`468`	`2078`	`7564`	`23664`
					`16`	`147`	`1032`	`5490`	`23664`
						`22`	`246`	`2067`	`13015`
							`29`	`387`	`3840`
								`37`	`580`
									`46`

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Last modified July 20 20:50 EDT 2024. Contains 374459 sequences. (Running on oeis4.)