A115253 - OEIS

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A115253 as a triangular array

1

1 1

2 2 2

5 3 3 5

14 7 6 7 14

42 19 13 13 19 42

132 56 35 31 35 56 132

429 174 103 83 83 103 174 429

1430 561 320 245 227 245 320 561 1430

4862 1859 1032 763 671 671 763 1032 1859 4862

16796 6292 3421

A115253 as a square array

`1`	`1`	`2`	`5`	`14`	`42`	`132`	`429`	`1430`	`4862`	`16796`
`1`	`2`	`3`	`7`	`19`	`56`	`174`	`561`	`1859`	`6292`
`2`	`3`	`6`	`13`	`35`	`103`	`320`	`1032`	`3421`
`5`	`7`	`13`	`31`	`83`	`245`	`763`
`14`	`19`	`35`	`83`	`227`	`671`
`42`	`56`	`103`	`245`	`671`
`132`	`174`	`320`	`763`
`429`	`561`	`1032`
`1430`	`1859`
`4862`

A115253 as an upper right triangle

`1`	`1`	`2`	`5`	`14`	`42`	`132`	`429`	`1430`	`4862`	`16796`
	`1`	`2`	`3`	`7`	`19`	`56`	`174`	`561`	`1859`	`6292`
		`2`	`3`	`6`	`13`	`35`	`103`	`320`	`1032`	`3421`
			`5`	`7`	`13`	`31`	`83`	`245`	`763`
				`14`	`19`	`35`	`83`	`227`	`671`
					`42`	`56`	`103`	`245`	`671`
						`132`	`174`	`320`	`763`
							`429`	`561`	`1032`
								`1430`	`1859`
									`4862`

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Last modified April 18 20:26 EDT 2024. Contains 371781 sequences. (Running on oeis4.)