A175197 - OEIS

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A175197 as a triangular array

1

1 0

1 2 0

1 6 2 0

1 18 12 2 0

1 50 66 18 2 0

1 140 330 146 24 2 0

1 392 1610 1070 258 30 2 0

1 1106 7742 7580 2500 402 36 2 0

1 3138 37058 52556 23330 4850 578 42 2 0

1 8952 177186 360402 212436 56252 8350 786

A175197 as a square array

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
`0`	`2`	`6`	`18`	`50`	`140`	`392`	`1106`	`3138`	`8952`
`0`	`2`	`12`	`66`	`330`	`1610`	`7742`	`37058`	`177186`
`0`	`2`	`18`	`146`	`1070`	`7580`	`52556`	`360402`
`0`	`2`	`24`	`258`	`2500`	`23330`	`212436`
`0`	`2`	`30`	`402`	`4850`	`56252`
`0`	`2`	`36`	`578`	`8350`
`0`	`2`	`42`	`786`
`0`	`2`
`0`

A175197 as an upper right triangle

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
	`0`	`2`	`6`	`18`	`50`	`140`	`392`	`1106`	`3138`	`8952`
		`0`	`2`	`12`	`66`	`330`	`1610`	`7742`	`37058`	`177186`
			`0`	`2`	`18`	`146`	`1070`	`7580`	`52556`	`360402`
				`0`	`2`	`24`	`258`	`2500`	`23330`	`212436`
					`0`	`2`	`30`	`402`	`4850`	`56252`
						`0`	`2`	`36`	`578`	`8350`
							`0`	`2`	`42`	`786`
								`0`	`2`
									`0`

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Last modified August 23 10:03 EDT 2024. Contains 375378 sequences. (Running on oeis4.)