A103881 - OEIS

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A103881 as a triangular array

1

1 2

1 6 2

1 12 12 2

1 20 42 18 2

1 30 110 92 24 2

1 42 240 340 162 30 2

1 56 462 1010 780 252 36 2

1 72 812 2562 2970 1500 362 42 2

1 90 1332 5768 9492 7002 2570 492 48 2

1 110 2070 11832 26474 27174 14240 4060 642 54 2

1 132 3080 22530 66222 91112 65226 26070 6040 812 60 2

A103881 as a square array

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
`2`	`6`	`12`	`20`	`30`	`42`	`56`	`72`	`90`	`110`	`132`
`2`	`12`	`42`	`110`	`240`	`462`	`812`	`1332`	`2070`	`3080`
`2`	`18`	`92`	`340`	`1010`	`2562`	`5768`	`11832`	`22530`
`2`	`24`	`162`	`780`	`2970`	`9492`	`26474`	`66222`
`2`	`30`	`252`	`1500`	`7002`	`27174`	`91112`
`2`	`36`	`362`	`2570`	`14240`	`65226`
`2`	`42`	`492`	`4060`	`26070`
`2`	`48`	`642`	`6040`
`2`	`54`	`812`
`2`	`60`
`2`

A103881 as an upper right triangle

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
	`2`	`6`	`12`	`20`	`30`	`42`	`56`	`72`	`90`	`110`	`132`
		`2`	`12`	`42`	`110`	`240`	`462`	`812`	`1332`	`2070`	`3080`
			`2`	`18`	`92`	`340`	`1010`	`2562`	`5768`	`11832`	`22530`
				`2`	`24`	`162`	`780`	`2970`	`9492`	`26474`	`66222`
					`2`	`30`	`252`	`1500`	`7002`	`27174`	`91112`
						`2`	`36`	`362`	`2570`	`14240`	`65226`
							`2`	`42`	`492`	`4060`	`26070`
								`2`	`48`	`642`	`6040`
									`2`	`54`	`812`
										`2`	`60`
											`2`

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Last modified April 19 23:15 EDT 2024. Contains 371798 sequences. (Running on oeis4.)