A181330 - OEIS

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A181330 as a triangular array

1

1 1

3 3 1

8 10 5 1

21 32 21 7 1

55 99 80 36 9 1

144 299 286 160 55 11 1

377 887 978 650 280 78 13 1

987 2595 3236 2482 1275 448 105 15 1

2584 7508 10438 9054 5377 2261 672 136 17 1

6765 21526 32991 31882

A181330 as a square array

`1`	`1`	`3`	`8`	`21`	`55`	`144`	`377`	`987`	`2584`	`6765`
`1`	`3`	`10`	`32`	`99`	`299`	`887`	`2595`	`7508`	`21526`
`1`	`5`	`21`	`80`	`286`	`978`	`3236`	`10438`	`32991`
`1`	`7`	`36`	`160`	`650`	`2482`	`9054`	`31882`
`1`	`9`	`55`	`280`	`1275`	`5377`
`1`	`11`	`78`	`448`	`2261`
`1`	`13`	`105`	`672`
`1`	`15`	`136`
`1`	`17`
`1`

A181330 as an upper right triangle

`1`	`1`	`3`	`8`	`21`	`55`	`144`	`377`	`987`	`2584`	`6765`
	`1`	`3`	`10`	`32`	`99`	`299`	`887`	`2595`	`7508`	`21526`
		`1`	`5`	`21`	`80`	`286`	`978`	`3236`	`10438`	`32991`
			`1`	`7`	`36`	`160`	`650`	`2482`	`9054`	`31882`
				`1`	`9`	`55`	`280`	`1275`	`5377`
					`1`	`11`	`78`	`448`	`2261`
						`1`	`13`	`105`	`672`
							`1`	`15`	`136`
								`1`	`17`
									`1`

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Last modified September 5 14:34 EDT 2024. Contains 375700 sequences. (Running on oeis4.)