A177896 - OEIS

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A177896 as a triangular array

1

1 1

2 3 1

4 9 6 1

9 26 26 10 1

21 75 100 60 15 1

51 216 360 295 120 21 1

127 623 1246 1295 735 217 28 1

323 1800 4200 5292 3864 1624 364 36 1

835 5211 13896 20580 18396 10080 3276 576 45 1

2188 15115 45345 77190 81690 55314 23730 6150 870 55 1

A177896 as a square array

`1`	`1`	`2`	`4`	`9`	`21`	`51`	`127`	`323`	`835`	`2188`
`1`	`3`	`9`	`26`	`75`	`216`	`623`	`1800`	`5211`	`15115`
`1`	`6`	`26`	`100`	`360`	`1246`	`4200`	`13896`	`45345`
`1`	`10`	`60`	`295`	`1295`	`5292`	`20580`	`77190`
`1`	`15`	`120`	`735`	`3864`	`18396`	`81690`
`1`	`21`	`217`	`1624`	`10080`	`55314`
`1`	`28`	`364`	`3276`	`23730`
`1`	`36`	`576`	`6150`
`1`	`45`	`870`
`1`	`55`
`1`

A177896 as an upper right triangle

`1`	`1`	`2`	`4`	`9`	`21`	`51`	`127`	`323`	`835`	`2188`
	`1`	`3`	`9`	`26`	`75`	`216`	`623`	`1800`	`5211`	`15115`
		`1`	`6`	`26`	`100`	`360`	`1246`	`4200`	`13896`	`45345`
			`1`	`10`	`60`	`295`	`1295`	`5292`	`20580`	`77190`
				`1`	`15`	`120`	`735`	`3864`	`18396`	`81690`
					`1`	`21`	`217`	`1624`	`10080`	`55314`
						`1`	`28`	`364`	`3276`	`23730`
							`1`	`36`	`576`	`6150`
								`1`	`45`	`870`
									`1`	`55`
										`1`

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Last modified April 19 12:14 EDT 2024. Contains 371792 sequences. (Running on oeis4.)