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A120140 a(1)=13; a(n)=floor((26+sum(a(1) to a(n-1)))/2). 0

%I

%S 13,19,29,43,65,97,146,219,328,492,738,1107,1661,2491,3737,5605,8408,

%T 12612,18918,28377,42565,63848,95772,143658,215487,323230,484845,

%U 727268,1090902,1636353,2454529,3681794,5522691,8284036,12426054,18639081

%N a(1)=13; a(n)=floor((26+sum(a(1) to a(n-1)))/2).

%Y Cf. A073941, A112088, A072493.

%K nonn

%O 1,1

%A _Graeme McRae_, Jun 10 2006

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Last modified October 21 05:28 EDT 2021. Contains 348141 sequences. (Running on oeis4.)