A121554 - OEIS

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A121554 as a triangular array

1

0 1

1 0 1

2 2 1 1

7 7 6 3 1

30 35 30 18 6 1

157 205 184 117 46 10 1

972 1392 1304 874 381 101 15 1

6961 10764 10499 7355 3470 1052 197 21 1

56660 93493 94668 68909 34622 11606 2542 351 28 1

516901 901900

A121554 as a square array

`1`	`0`	`1`	`2`	`7`	`30`	`157`	`972`	`6961`	`56660`	`516901`
`1`	`0`	`2`	`7`	`35`	`205`	`1392`	`10764`	`93493`	`901900`
`1`	`1`	`6`	`30`	`184`	`1304`	`10499`	`94668`
`1`	`3`	`18`	`117`	`874`	`7355`	`68909`
`1`	`6`	`46`	`381`	`3470`	`34622`
`1`	`10`	`101`	`1052`	`11606`
`1`	`15`	`197`	`2542`
`1`	`21`	`351`
`1`	`28`
`1`

A121554 as an upper right triangle

`1`	`0`	`1`	`2`	`7`	`30`	`157`	`972`	`6961`	`56660`	`516901`
	`1`	`0`	`2`	`7`	`35`	`205`	`1392`	`10764`	`93493`	`901900`
		`1`	`1`	`6`	`30`	`184`	`1304`	`10499`	`94668`
			`1`	`3`	`18`	`117`	`874`	`7355`	`68909`
				`1`	`6`	`46`	`381`	`3470`	`34622`
					`1`	`10`	`101`	`1052`	`11606`
						`1`	`15`	`197`	`2542`
							`1`	`21`	`351`
								`1`	`28`
									`1`

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Last modified April 19 21:09 EDT 2024. Contains 371798 sequences. (Running on oeis4.)