A346520 - OEIS

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A346520 as a triangular array

1

1 1

2 2 1

5 5 3 2

15 15 9 5 2

52 52 31 16 7 3

203 203 120 59 25 10 4

877 877 514 244 100 38 14 5

4140 4140 2407 1112 442 161 56 19 6

21147 21147 12205 5516 2134 750 249 80 25 8

115975 115975 66491 29505 11147 3799 1213 372 111 33 10

A346520 as a square array

`1`	`1`	`2`	`5`	`15`	`52`	`203`	`877`	`4140`	`21147`	`115975`
`1`	`2`	`5`	`15`	`52`	`203`	`877`	`4140`	`21147`	`115975`
`1`	`3`	`9`	`31`	`120`	`514`	`2407`	`12205`	`66491`
`2`	`5`	`16`	`59`	`244`	`1112`	`5516`	`29505`
`2`	`7`	`25`	`100`	`442`	`2134`	`11147`
`3`	`10`	`38`	`161`	`750`	`3799`
`4`	`14`	`56`	`249`	`1213`
`5`	`19`	`80`	`372`
`6`	`25`	`111`
`8`	`33`
`10`

A346520 as an upper right triangle

`1`	`1`	`2`	`5`	`15`	`52`	`203`	`877`	`4140`	`21147`	`115975`
	`1`	`2`	`5`	`15`	`52`	`203`	`877`	`4140`	`21147`	`115975`
		`1`	`3`	`9`	`31`	`120`	`514`	`2407`	`12205`	`66491`
			`2`	`5`	`16`	`59`	`244`	`1112`	`5516`	`29505`
				`2`	`7`	`25`	`100`	`442`	`2134`	`11147`
					`3`	`10`	`38`	`161`	`750`	`3799`
						`4`	`14`	`56`	`249`	`1213`
							`5`	`19`	`80`	`372`
								`6`	`25`	`111`
									`8`	`33`
										`10`

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Last modified April 23 22:36 EDT 2024. Contains 371917 sequences. (Running on oeis4.)