A281251 - OEIS

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A281251 as a triangular array

0

0 0

0 0 0

1 12 12 1

2 139 443 139 2

9 1222 8489 8489 1222 9

34 9151 105368 197429 105368 9151 34

124 63138 1113148 3291920 3291920 1113148 63138 124

432 412070 10598099 47427679 76670685 47427679 10598099

A281251 as a square array

`0`	`0`	`0`	`1`	`2`	`9`	`34`	`124`	`432`
`0`	`0`	`12`	`139`	`1222`	`9151`	`63138`	`412070`
`0`	`12`	`443`	`8489`	`105368`	`1113148`	`10598099`
`1`	`139`	`8489`	`197429`	`3291920`	`47427679`
`2`	`1222`	`105368`	`3291920`	`76670685`
`9`	`9151`	`1113148`	`47427679`
`34`	`63138`	`10598099`
`124`

A281251 as an upper right triangle

`0`	`0`	`0`	`1`	`2`	`9`	`34`	`124`	`432`
	`0`	`0`	`12`	`139`	`1222`	`9151`	`63138`	`412070`
		`0`	`12`	`443`	`8489`	`105368`	`1113148`	`10598099`
			`1`	`139`	`8489`	`197429`	`3291920`	`47427679`
				`2`	`1222`	`105368`	`3291920`	`76670685`
					`9`	`9151`	`1113148`	`47427679`
						`34`	`63138`	`10598099`
							`124`

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Last modified August 24 14:47 EDT 2024. Contains 375417 sequences. (Running on oeis4.)