A258631 - OEIS

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A258631 as a triangular array

1

2 2

3 6 4

4 12 18 8

5 20 45 50 16

6 28 80 130 105 27

7 36 125 264 331 181 33

8 46 179 511 809 834 316 35

9 56 257 830 2094 2506 2115 560 45

9 67 345 1408 4021 9099 8432 5726 969 60

10 73 468 2150 8116 20462 40789

A258631 as a square array

`1`	`2`	`3`	`4`	`5`	`6`	`7`	`8`	`9`	`9`	`10`
`2`	`6`	`12`	`20`	`28`	`36`	`46`	`56`	`67`	`73`
`4`	`18`	`45`	`80`	`125`	`179`	`257`	`345`	`468`
`8`	`50`	`130`	`264`	`511`	`830`	`1408`	`2150`
`16`	`105`	`331`	`809`	`2094`	`4021`	`8116`
`27`	`181`	`834`	`2506`	`9099`	`20462`
`33`	`316`	`2115`	`8432`	`40789`
`35`	`560`	`5726`
`45`	`969`
`60`

A258631 as an upper right triangle

`1`	`2`	`3`	`4`	`5`	`6`	`7`	`8`	`9`	`9`	`10`
	`2`	`6`	`12`	`20`	`28`	`36`	`46`	`56`	`67`	`73`
		`4`	`18`	`45`	`80`	`125`	`179`	`257`	`345`	`468`
			`8`	`50`	`130`	`264`	`511`	`830`	`1408`	`2150`
				`16`	`105`	`331`	`809`	`2094`	`4021`	`8116`
					`27`	`181`	`834`	`2506`	`9099`	`20462`
						`33`	`316`	`2115`	`8432`	`40789`
							`35`	`560`	`5726`
								`45`	`969`
									`60`

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Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)