A275212 - OEIS

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A275212 as a triangular array

1

2 3

3 12 20

12 20 120 210

10 120 210 1680 3024

60 105 1680 3024 30240 55440

35 840 1512 30240 55440 665280 1235520

280 504 15120 27720 665280 1235520 17297280 32432400

126 5040 9240 332640 617760 17297280 32432400 518918400 980179200

A275212 as a square array

`1`	`2`	`3`	`12`	`10`	`60`	`35`	`280`	`126`
`3`	`12`	`20`	`120`	`105`	`840`	`504`	`5040`
`20`	`120`	`210`	`1680`	`1512`	`15120`	`9240`
`210`	`1680`	`3024`	`30240`	`27720`	`332640`
`3024`	`30240`	`55440`	`665280`	`617760`
`55440`	`665280`	`1235520`	`17297280`
`1235520`	`17297280`	`32432400`
`32432400`	`518918400`
`980179200`

A275212 as an upper right triangle

`1`	`2`	`3`	`12`	`10`	`60`	`35`	`280`	`126`
	`3`	`12`	`20`	`120`	`105`	`840`	`504`	`5040`
		`20`	`120`	`210`	`1680`	`1512`	`15120`	`9240`
			`210`	`1680`	`3024`	`30240`	`27720`	`332640`
				`3024`	`30240`	`55440`	`665280`	`617760`
					`55440`	`665280`	`1235520`	`17297280`
						`1235520`	`17297280`	`32432400`
							`32432400`	`518918400`
								`980179200`

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Last modified April 19 09:23 EDT 2024. Contains 371782 sequences. (Running on oeis4.)