A271493 - OEIS

%I #15 Nov 27 2018 03:54:10

%S 1,2,4,8,14,24,40,66,106,170,270,426,668,1044,1626,2526,3914,6054,

%T 9352,14428,22236,34244,52704,81070,12465,191594,294410,452298,694734,

%U 1066968,1638456

%N Arises in enumeration of locally convex functions.

%C See Coscia-DeWitt (2016) for precise definition.

%H Christopher Coscia, Jonathan DeWitt, <a href="http://www.combinatorics.org/ojs/index.php/eljc/article/view/v23i2p10/pdf">Locally Convex Words and Permutations</a>, Electronic Journal of Combinatorics. 23 (2), 2016, #P2.10. Eq. 4.5 gives a g.f.

%Y Cf. A271491, A271492.

%K nonn

%O 1,2

%A _N. J. A. Sloane_, Apr 15 2016

%E More terms added by _Christopher Coscia_, May 30 2017