A153199 - OEIS

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A153199 as a triangular array

1

1 1

1 2 2

1 3 6 5

1 4 12 20 14

1 5 20 50 70 43

1 6 30 100 210 258 143

1 7 42 175 490 903 1001 509

1 8 56 280 980 2408 4004 4072 1922

1 9 72 420 1764 5418 12012 18324 17298 7651

A153199 as a square array

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
`1`	`2`	`3`	`4`	`5`	`6`	`7`	`8`	`9`
`2`	`6`	`12`	`20`	`30`	`42`	`56`	`72`
`5`	`20`	`50`	`100`	`175`	`280`	`420`
`14`	`70`	`210`	`490`	`980`	`1764`
`43`	`258`	`903`	`2408`	`5418`
`143`	`1001`	`4004`	`12012`
`509`	`4072`	`18324`
`1922`	`17298`
`7651`

A153199 as an upper right triangle

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
	`1`	`2`	`3`	`4`	`5`	`6`	`7`	`8`	`9`
		`2`	`6`	`12`	`20`	`30`	`42`	`56`	`72`
			`5`	`20`	`50`	`100`	`175`	`280`	`420`
				`14`	`70`	`210`	`490`	`980`	`1764`
					`43`	`258`	`903`	`2408`	`5418`
						`143`	`1001`	`4004`	`12012`
							`509`	`4072`	`18324`
								`1922`	`17298`
									`7651`

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Last modified August 11 12:53 EDT 2024. Contains 375069 sequences. (Running on oeis4.)