A145515 - OEIS

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A145515 as a triangular array

1

1 1

1 1 1

1 2 1 1

1 2 4 1 1

1 2 5 10 1 1

1 2 6 23 36 1 1

1 2 7 46 239 202 1 1

1 2 8 82 1086 5828 1828 1 1

1 2 9 134 3707 79326 342383 27338 1 1

1 2 10 205 10340 642457 18583582 50110484 692004 1 1

1 2 11 298 24901 3649346 446020582 14481808030 18757984046 30251722 1 1

A145515 as a square array

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
`1`	`1`	`2`	`2`	`2`	`2`	`2`	`2`	`2`	`2`	`2`
`1`	`1`	`4`	`5`	`6`	`7`	`8`	`9`	`10`	`11`
`1`	`1`	`10`	`23`	`46`	`82`	`134`	`205`	`298`
`1`	`1`	`36`	`239`	`1086`	`3707`	`10340`	`24901`
`1`	`1`	`202`	`5828`	`79326`	`642457`	`3649346`
`1`	`1`	`1828`	`342383`	`18583582`	`446020582`
`1`	`1`	`27338`	`50110484`	`14481808030`
`1`	`1`	`692004`	`18757984046`
`1`	`1`	`30251722`
`1`	`1`
`1`

A145515 as an upper right triangle

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
	`1`	`1`	`2`	`2`	`2`	`2`	`2`	`2`	`2`	`2`	`2`
		`1`	`1`	`4`	`5`	`6`	`7`	`8`	`9`	`10`	`11`
			`1`	`1`	`10`	`23`	`46`	`82`	`134`	`205`	`298`
				`1`	`1`	`36`	`239`	`1086`	`3707`	`10340`	`24901`
					`1`	`1`	`202`	`5828`	`79326`	`642457`	`3649346`
						`1`	`1`	`1828`	`342383`	`18583582`	`446020582`
							`1`	`1`	`27338`	`50110484`	`14481808030`
								`1`	`1`	`692004`	`18757984046`
									`1`	`1`	`30251722`
										`1`	`1`
											`1`

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Last modified April 25 09:49 EDT 2024. Contains 371967 sequences. (Running on oeis4.)