A197431 - OEIS

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A197431 as a triangular array

1

3 3

4 9 4

5 20 20 5

9 71 68 71 9

16 227 448 448 227 16

25 664 2152 5197 2152 664 25

39 2107 10684 43909 43909 10684 2107 39

64 6675 55567 410456 720447 410456 55567 6675 64

105 20696 280544 4017895 11769456

A197431 as a square array

`1`	`3`	`4`	`5`	`9`	`16`	`25`	`39`	`64`	`105`
`3`	`9`	`20`	`71`	`227`	`664`	`2107`	`6675`	`20696`
`4`	`20`	`68`	`448`	`2152`	`10684`	`55567`	`280544`
`5`	`71`	`448`	`5197`	`43909`	`410456`	`4017895`
`9`	`227`	`2152`	`43909`	`720447`	`11769456`
`16`	`664`	`10684`	`410456`
`25`	`2107`	`55567`
`39`	`6675`
`64`

A197431 as an upper right triangle

`1`	`3`	`4`	`5`	`9`	`16`	`25`	`39`	`64`	`105`
	`3`	`9`	`20`	`71`	`227`	`664`	`2107`	`6675`	`20696`
		`4`	`20`	`68`	`448`	`2152`	`10684`	`55567`	`280544`
			`5`	`71`	`448`	`5197`	`43909`	`410456`	`4017895`
				`9`	`227`	`2152`	`43909`	`720447`	`11769456`
					`16`	`664`	`10684`	`410456`
						`25`	`2107`	`55567`
							`39`	`6675`
								`64`

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Last modified July 15 05:00 EDT 2024. Contains 374324 sequences. (Running on oeis4.)