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%I #5 May 27 2024 15:48:56
%S 2,8,30,122,548,2802,15638,100760,661242,5519558,36021212,495019758,
%T 944742290,96695115272,-1151063332242,46492769525882,
%U -1177828529162332,39211350154011570,-1272035779868081338,45289997660347946648,-1679496857400789295638,65976928289858329056518
%N Expansion of e.g.f. 2*exp(sqrt(2*x+1)-1)/(2-sqrt(2*x+1))^3.
%H Y. Alp and E. G. Kocer, <a href="https://doi.org/10.1007/s00025-024-02193-5">Exponential Almost-Riordan Arrays</a>, Results Math 79, 173 (2024). See page 24.
%t a[n_]:=n!SeriesCoefficient[2Exp[Sqrt[2x+1]-1]/(2-Sqrt[2x+1])^3,{x,0,n}]; Array[a,22,0]
%Y Cf. A000806, A330797, A373175.
%K sign
%O 0,1
%A _Stefano Spezia_, May 26 2024