A111840 - OEIS

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A111840 as a triangular array

1

1 1

3 3 1

18 18 9 1

216 216 135 27 1

5589 5589 4050 1134 81 1

336555 336555 269730 95256 9963 243 1

49768101 49768101 42724503 17926839 2450898 88938 729 1

18707873562 18707873562 16835895603 8074043145

A111840 as a square array

`1`	`1`	`3`	`18`	`216`	`5589`	`336555`	`49768101`	`18707873562`
`1`	`3`	`18`	`216`	`5589`	`336555`	`49768101`	`18707873562`
`1`	`9`	`135`	`4050`	`269730`	`42724503`	`16835895603`
`1`	`27`	`1134`	`95256`	`17926839`	`8074043145`
`1`	`81`	`9963`	`2450898`
`1`	`243`	`88938`
`1`	`729`
`1`

A111840 as an upper right triangle

`1`	`1`	`3`	`18`	`216`	`5589`	`336555`	`49768101`	`18707873562`
	`1`	`3`	`18`	`216`	`5589`	`336555`	`49768101`	`18707873562`
		`1`	`9`	`135`	`4050`	`269730`	`42724503`	`16835895603`
			`1`	`27`	`1134`	`95256`	`17926839`	`8074043145`
				`1`	`81`	`9963`	`2450898`
					`1`	`243`	`88938`
						`1`	`729`
							`1`

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Last modified May 16 17:27 EDT 2024. Contains 372554 sequences. (Running on oeis4.)