A049400 - OEIS

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A049400 as a triangular array

1

1 2

1 3 4

1 6 9 10

1 10 21 25 26

1 20 51 70 75 76

1 35 127 196 225 231 232

1 70 323 588 715 756 763 764

1 126 835 1764 2347 2556 2611 2619 2620

1 252 2188 5544 7990 9096 9415 9486 9495 9496

1 462 5798 17424 27908 33231 35135 35596

A049400 as a square array

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
`2`	`3`	`6`	`10`	`20`	`35`	`70`	`126`	`252`	`462`
`4`	`9`	`21`	`51`	`127`	`323`	`835`	`2188`	`5798`
`10`	`25`	`70`	`196`	`588`	`1764`	`5544`	`17424`
`26`	`75`	`225`	`715`	`2347`	`7990`	`27908`
`76`	`231`	`756`	`2556`	`9096`	`33231`
`232`	`763`	`2611`	`9415`	`35135`
`764`	`2619`	`9486`	`35596`
`2620`	`9495`
`9496`

A049400 as an upper right triangle

`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`	`1`
	`2`	`3`	`6`	`10`	`20`	`35`	`70`	`126`	`252`	`462`
		`4`	`9`	`21`	`51`	`127`	`323`	`835`	`2188`	`5798`
			`10`	`25`	`70`	`196`	`588`	`1764`	`5544`	`17424`
				`26`	`75`	`225`	`715`	`2347`	`7990`	`27908`
					`76`	`231`	`756`	`2556`	`9096`	`33231`
						`232`	`763`	`2611`	`9415`	`35135`
							`764`	`2619`	`9486`	`35596`
								`2620`	`9495`
									`9496`

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Last modified April 24 09:42 EDT 2024. Contains 371935 sequences. (Running on oeis4.)