A181661 - OEIS

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A181661 as a triangular array

1

2 2

6 5 3

23 17 7 4

95 68 24 10 5

400 284 95 35 13 6

1692 1199 396 141 46 15 7

7165 5075 1671 590 186 53 18 8

30349 21494 7072 2492 778 214 64 20 9

128558 91046 29951 10549 3286 896 259 71 23 10

544578

A181661 as a square array

`1`	`2`	`6`	`23`	`95`	`400`	`1692`	`7165`	`30349`	`128558`	`544578`
`2`	`5`	`17`	`68`	`284`	`1199`	`5075`	`21494`	`91046`
`3`	`7`	`24`	`95`	`396`	`1671`	`7072`	`29951`
`4`	`10`	`35`	`141`	`590`	`2492`	`10549`
`5`	`13`	`46`	`186`	`778`	`3286`
`6`	`15`	`53`	`214`	`896`
`7`	`18`	`64`	`259`
`8`	`20`	`71`
`9`	`23`
`10`

A181661 as an upper right triangle

`1`	`2`	`6`	`23`	`95`	`400`	`1692`	`7165`	`30349`	`128558`	`544578`
	`2`	`5`	`17`	`68`	`284`	`1199`	`5075`	`21494`	`91046`
		`3`	`7`	`24`	`95`	`396`	`1671`	`7072`	`29951`
			`4`	`10`	`35`	`141`	`590`	`2492`	`10549`
				`5`	`13`	`46`	`186`	`778`	`3286`
					`6`	`15`	`53`	`214`	`896`
						`7`	`18`	`64`	`259`
							`8`	`20`	`71`
								`9`	`23`
									`10`

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Last modified April 18 22:18 EDT 2024. Contains 371782 sequences. (Running on oeis4.)