A270509 - OEIS

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A270509 as a triangular array

0

0 3

0 6 15

0 21 144 126

0 36 1137 5406 1149

0 63 4584 132474 369072 14220

0 90 15843 1522068 34889103 47829828 230247

0 129 40392 12034134 1489277664 22383193638 12072484260 5038371

0 168 95109 65046258

A270509 as a square array

`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`
`3`	`6`	`21`	`36`	`63`	`90`	`129`	`168`
`15`	`144`	`1137`	`4584`	`15843`	`40392`	`95109`
`126`	`5406`	`132474`	`1522068`	`12034134`	`65046258`
`1149`	`369072`	`34889103`	`1489277664`
`14220`	`47829828`	`22383193638`
`230247`	`12072484260`
`5038371`

A270509 as an upper right triangle

`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`	`0`
	`3`	`6`	`21`	`36`	`63`	`90`	`129`	`168`
		`15`	`144`	`1137`	`4584`	`15843`	`40392`	`95109`
			`126`	`5406`	`132474`	`1522068`	`12034134`	`65046258`
				`1149`	`369072`	`34889103`	`1489277664`
					`14220`	`47829828`	`22383193638`
						`230247`	`12072484260`
							`5038371`

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Last modified April 23 10:29 EDT 2024. Contains 371905 sequences. (Running on oeis4.)