A337268 - OEIS

%I #9 Aug 27 2020 01:53:41

%S 2,5,16,52,174,618,2300,8764,34038,133858,530876,2112904,8417830,

%T 33592910,134211556,536403988,2144322638

%N A335703(2n+1).

%Y Cf. A328078, A335703, A337267, A337269.

%K nonn,more

%O 0,1

%A _Rémy Sigrist_ and _N. J. A. Sloane_, Aug 26 2020