A090285 - OEIS

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A090285 as a triangular array

1

1 1

2 4 1

5 15 7 1

14 56 37 10 1

42 210 176 68 13 1

132 792 794 392 108 16 1

429 3003 3473 2063 731 157 19 1

1430 11440 14893 10254 4395 1220 215 22 1

4862 43758 63004 49024 24465 8249 1886 282 25 1

A090285 as a square array

`1`	`1`	`2`	`5`	`14`	`42`	`132`	`429`	`1430`	`4862`
`1`	`4`	`15`	`56`	`210`	`792`	`3003`	`11440`	`43758`
`1`	`7`	`37`	`176`	`794`	`3473`	`14893`	`63004`
`1`	`10`	`68`	`392`	`2063`	`10254`	`49024`
`1`	`13`	`108`	`731`	`4395`	`24465`
`1`	`16`	`157`	`1220`	`8249`
`1`	`19`	`215`	`1886`
`1`	`22`	`282`
`1`	`25`
`1`

A090285 as an upper right triangle

`1`	`1`	`2`	`5`	`14`	`42`	`132`	`429`	`1430`	`4862`
	`1`	`4`	`15`	`56`	`210`	`792`	`3003`	`11440`	`43758`
		`1`	`7`	`37`	`176`	`794`	`3473`	`14893`	`63004`
			`1`	`10`	`68`	`392`	`2063`	`10254`	`49024`
				`1`	`13`	`108`	`731`	`4395`	`24465`
					`1`	`16`	`157`	`1220`	`8249`
						`1`	`19`	`215`	`1886`
							`1`	`22`	`282`
								`1`	`25`
									`1`

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Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)