A221898 - OEIS

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A221898 as a triangular array

1

3 3

6 31 6

13 258 266 13

28 2241 7667 2305 28

60 19408 236532 235332 19936 60

129 167960 7235107 25821731 7197649 172624 129

277 1453952 221465158 2815434576 2814706089 220361275 1494152 277

595 12585637

A221898 as a square array

`1`	`3`	`6`	`13`	`28`	`60`	`129`	`277`	`595`
`3`	`31`	`258`	`2241`	`19408`	`167960`	`1453952`	`12585637`
`6`	`266`	`7667`	`236532`	`7235107`	`221465158`
`13`	`2305`	`235332`	`25821731`	`2815434576`
`28`	`19936`	`7197649`	`2814706089`
`60`	`172624`	`220361275`
`129`	`1494152`
`277`

A221898 as an upper right triangle

`1`	`3`	`6`	`13`	`28`	`60`	`129`	`277`	`595`
	`3`	`31`	`258`	`2241`	`19408`	`167960`	`1453952`	`12585637`
		`6`	`266`	`7667`	`236532`	`7235107`	`221465158`
			`13`	`2305`	`235332`	`25821731`	`2815434576`
				`28`	`19936`	`7197649`	`2814706089`
					`60`	`172624`	`220361275`
						`129`	`1494152`
							`277`

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Last modified September 4 18:18 EDT 2024. Contains 375685 sequences. (Running on oeis4.)