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A219692 as a simple table

`n`		`a(n)`
`0`		`2`
`1`		`6`
`2`		`54`
`3`		`564`
`4`		`6390`
`5`		`76356`
`6`		`948276`
`7`		`12132504`
`8`		`158984694`
`9`		`2124923460`
`10`		`28877309604`
`11`		`398046897144`
`12`		`5554209125556`
`13`		`78328566695736`
`14`		`1114923122685720`
`15`		`15999482238880464`
`16`		`231253045986317814`
`17`		`3363838379489630916`

[2,6,54,564,6390,76356,948276,12132504,158984694, 2124923460,28877309604,398046897144,5554209125556, 78328566695736,1114923122685720,15999482238880464, 231253045986317814,3363838379489630916]

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Last modified September 8 12:12 EDT 2024. Contains 375753 sequences. (Running on oeis4.)