A187889 - OEIS

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A187889 as a triangular array

1

1 1

2 3 1

4 8 5 1

7 19 18 7 1

13 43 54 32 9 1

24 94 147 117 50 11 1

44 200 375 375 216 72 13 1

81 418 913 1100 799 359 98 15 1

149 861 2147 3027 2657 1507 554 128 17 1

274 1753 4914 7937 8174 5610 2603 809 162 19 1

A187889 as a square array

`1`	`1`	`2`	`4`	`7`	`13`	`24`	`44`	`81`	`149`	`274`
`1`	`3`	`8`	`19`	`43`	`94`	`200`	`418`	`861`	`1753`
`1`	`5`	`18`	`54`	`147`	`375`	`913`	`2147`	`4914`
`1`	`7`	`32`	`117`	`375`	`1100`	`3027`	`7937`
`1`	`9`	`50`	`216`	`799`	`2657`	`8174`
`1`	`11`	`72`	`359`	`1507`	`5610`
`1`	`13`	`98`	`554`	`2603`
`1`	`15`	`128`	`809`
`1`	`17`	`162`
`1`	`19`
`1`

A187889 as an upper right triangle

`1`	`1`	`2`	`4`	`7`	`13`	`24`	`44`	`81`	`149`	`274`
	`1`	`3`	`8`	`19`	`43`	`94`	`200`	`418`	`861`	`1753`
		`1`	`5`	`18`	`54`	`147`	`375`	`913`	`2147`	`4914`
			`1`	`7`	`32`	`117`	`375`	`1100`	`3027`	`7937`
				`1`	`9`	`50`	`216`	`799`	`2657`	`8174`
					`1`	`11`	`72`	`359`	`1507`	`5610`
						`1`	`13`	`98`	`554`	`2603`
							`1`	`15`	`128`	`809`
								`1`	`17`	`162`
									`1`	`19`
										`1`

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Last modified April 23 15:20 EDT 2024. Contains 371916 sequences. (Running on oeis4.)