[seqfan] Re: Possibly closed expression for A026010?

[M. F. Hasler]

There is an  explicit closed formula hidden in cross references:
First differences of A050168 <https://oeis.org/A050168>.

Maybe yours is equivalent to that.

--
Maximilian

On 8 Nov 2018 13:09, "Peter" <petsie at dordos.net> wrote:

Hi seqfans,

 I've been playing with Mathematica and guess that

A026010[n_] = 2^(-1 + n)*(((2 + 3*#)*Gamma[(1 + #)/2])/(Sqrt[Pi]*Gamma[2
+ #/2]) &[n + Mod[n, 2]])

is correct (only verified it for n=0..1000).

Best regards.

Peter



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