A185905 - OEIS

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A185905 as a triangular array

1

5 5

15 25 15

35 75 75 35

70 175 225 175 70

126 350 525 525 350 126

210 630 1050 1225 1050 630 210

330 1050 1890 2450 2450 1890 1050 330

495 1650 3150 4410 4900 4410 3150 1650 495

715 2475 4950 7350 8820 8820 7350 4950 2475 715

1001 3575 7425 11550

A185905 as a square array

`1`	`5`	`15`	`35`	`70`	`126`	`210`	`330`	`495`	`715`	`1001`
`5`	`25`	`75`	`175`	`350`	`630`	`1050`	`1650`	`2475`	`3575`
`15`	`75`	`225`	`525`	`1050`	`1890`	`3150`	`4950`	`7425`
`35`	`175`	`525`	`1225`	`2450`	`4410`	`7350`	`11550`
`70`	`350`	`1050`	`2450`	`4900`	`8820`
`126`	`630`	`1890`	`4410`	`8820`
`210`	`1050`	`3150`	`7350`
`330`	`1650`	`4950`
`495`	`2475`
`715`

A185905 as an upper right triangle

`1`	`5`	`15`	`35`	`70`	`126`	`210`	`330`	`495`	`715`	`1001`
	`5`	`25`	`75`	`175`	`350`	`630`	`1050`	`1650`	`2475`	`3575`
		`15`	`75`	`225`	`525`	`1050`	`1890`	`3150`	`4950`	`7425`
			`35`	`175`	`525`	`1225`	`2450`	`4410`	`7350`	`11550`
				`70`	`350`	`1050`	`2450`	`4900`	`8820`
					`126`	`630`	`1890`	`4410`	`8820`
						`210`	`1050`	`3150`	`7350`
							`330`	`1650`	`4950`
								`495`	`2475`
									`715`

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Last modified April 25 03:15 EDT 2024. Contains 371964 sequences. (Running on oeis4.)