[seqfan] Re: Additional recurrence relation for A000407 ?

[Georg.Fischer]

That recurrence is a shifted version of the one
already noted in A000407:

D-finite with recurrence: a(n) = -(-1)^n / (4 * a(-2-n)) = a(n+1) / 
(4*n+6) for all n in Z. - Michael Somos, Jan 03 2015

So I'm inclined to answer: No.

Regards - Georg Fischer

Am 29.12.2022 um 20:38 schrieb Christian Krause:
> Hi,
> would it be worth adding this recurrence relation to A000407
> <https://oeis.org/A000407> ?
> 
> a(n) = a(n-1)*(4*n+2), a(1) = 6, a(0) = 1
> 
> 
> Regards,
> Christian
> 
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