A047887 - OEIS

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A047887 as a triangular array

1

1 2

1 5 6

1 14 23 24

1 42 103 119 120

1 132 513 694 719 720

1 429 2761 4582 5003 5039 5040

1 1430 15767 33324 39429 40270 40319 40320

1 4862 94359 261808 344837 361302 362815 362879 362880

1 16796

A047887 as a square array

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
`2`	`5`	`14`	`42`	`132`	`429`	`1430`	`4862`	`16796`
`6`	`23`	`103`	`513`	`2761`	`15767`	`94359`
`24`	`119`	`694`	`4582`	`33324`	`261808`
`120`	`719`	`5003`	`39429`	`344837`
`720`	`5039`	`40270`	`361302`
`5040`	`40319`	`362815`
`40320`	`362879`
`362880`

A047887 as an upper right triangle

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
	`2`	`5`	`14`	`42`	`132`	`429`	`1430`	`4862`	`16796`
		`6`	`23`	`103`	`513`	`2761`	`15767`	`94359`
			`24`	`119`	`694`	`4582`	`33324`	`261808`
				`120`	`719`	`5003`	`39429`	`344837`
					`720`	`5039`	`40270`	`361302`
						`5040`	`40319`	`362815`
							`40320`	`362879`
								`362880`

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Last modified September 15 15:30 EDT 2024. Contains 375938 sequences. (Running on oeis4.)