A054630 - OEIS

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A054630 as a triangular array

1

2 3

3 6 11

4 10 24 70

5 15 45 165 629

6 21 76 336 1560 7826

7 28 119 616 3367 19684 117655

8 36 176 1044 6560 43800 299600 2097684

9 45 249 1665 11817 88725 683289 5381685 43046889

10 55 340 2530 20008 166870 1428580 12501280 111111340 1000010044

A054630 as a square array

`1`	`2`	`3`	`4`	`5`	`6`	`7`	`8`	`9`	`10`
`3`	`6`	`10`	`15`	`21`	`28`	`36`	`45`	`55`
`11`	`24`	`45`	`76`	`119`	`176`	`249`	`340`
`70`	`165`	`336`	`616`	`1044`	`1665`	`2530`
`629`	`1560`	`3367`	`6560`	`11817`	`20008`
`7826`	`19684`	`43800`	`88725`	`166870`
`117655`	`299600`	`683289`	`1428580`
`2097684`	`5381685`	`12501280`
`43046889`	`111111340`
`1000010044`

A054630 as an upper right triangle

`1`	`2`	`3`	`4`	`5`	`6`	`7`	`8`	`9`	`10`
	`3`	`6`	`10`	`15`	`21`	`28`	`36`	`45`	`55`
		`11`	`24`	`45`	`76`	`119`	`176`	`249`	`340`
			`70`	`165`	`336`	`616`	`1044`	`1665`	`2530`
				`629`	`1560`	`3367`	`6560`	`11817`	`20008`
					`7826`	`19684`	`43800`	`88725`	`166870`
						`117655`	`299600`	`683289`	`1428580`
							`2097684`	`5381685`	`12501280`
								`43046889`	`111111340`
									`1000010044`

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Last modified August 27 22:21 EDT 2024. Contains 375471 sequences. (Running on oeis4.)