A340108 - OEIS

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A340108 as a triangular array

1

1 1

1 2 2

1 3 6 0

1 4 12 0 16

1 5 20 30 80 60

1 6 30 84 264 480 456

1 7 42 168 672 1890 3612 3458

1 8 56 288 1424 5440 15744 30352 29296

1 9 72 450 2664 12870 50004 145656 283104 275166

1 10 90 660 4560 26640 130080 508060 1488960 2909700 2843980

A340108 as a square array

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
`1`	`2`	`3`	`4`	`5`	`6`	`7`	`8`	`9`	`10`
`2`	`6`	`12`	`20`	`30`	`42`	`56`	`72`	`90`
`0`	`0`	`30`	`84`	`168`	`288`	`450`	`660`
`16`	`80`	`264`	`672`	`1424`	`2664`	`4560`
`60`	`480`	`1890`	`5440`	`12870`	`26640`
`456`	`3612`	`15744`	`50004`	`130080`
`3458`	`30352`	`145656`	`508060`
`29296`	`283104`	`1488960`
`275166`	`2909700`
`2843980`

A340108 as an upper right triangle

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
	`1`	`2`	`3`	`4`	`5`	`6`	`7`	`8`	`9`	`10`
		`2`	`6`	`12`	`20`	`30`	`42`	`56`	`72`	`90`
			`0`	`0`	`30`	`84`	`168`	`288`	`450`	`660`
				`16`	`80`	`264`	`672`	`1424`	`2664`	`4560`
					`60`	`480`	`1890`	`5440`	`12870`	`26640`
						`456`	`3612`	`15744`	`50004`	`130080`
							`3458`	`30352`	`145656`	`508060`
								`29296`	`283104`	`1488960`
									`275166`	`2909700`
										`2843980`

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Last modified September 3 01:08 EDT 2024. Contains 375630 sequences. (Running on oeis4.)