A131049 - OEIS

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A131049 as a triangular array

1

2 2

7 6 3

20 28 12 4

61 100 70 20 5

182 366 300 140 30 6

547 1274 1281 700 245 42 7

1640 4376 5096 3416 1400 392 56 8

4921 14760 19692 15288 7686 2520 588 72 9

A131049 as a square array

`1`	`2`	`7`	`20`	`61`	`182`	`547`	`1640`	`4921`
`2`	`6`	`28`	`100`	`366`	`1274`	`4376`	`14760`
`3`	`12`	`70`	`300`	`1281`	`5096`	`19692`
`4`	`20`	`140`	`700`	`3416`	`15288`
`5`	`30`	`245`	`1400`	`7686`
`6`	`42`	`392`	`2520`
`7`	`56`	`588`
`8`	`72`
`9`

A131049 as an upper right triangle

`1`	`2`	`7`	`20`	`61`	`182`	`547`	`1640`	`4921`
	`2`	`6`	`28`	`100`	`366`	`1274`	`4376`	`14760`
		`3`	`12`	`70`	`300`	`1281`	`5096`	`19692`
			`4`	`20`	`140`	`700`	`3416`	`15288`
				`5`	`30`	`245`	`1400`	`7686`
					`6`	`42`	`392`	`2520`
						`7`	`56`	`588`
							`8`	`72`
								`9`

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Last modified April 24 15:52 EDT 2024. Contains 371961 sequences. (Running on oeis4.)