[0,2,4,6,10,18,32,56,98,172,302,530,930,1632,2864, 5026,8820,15478,27162,47666,83648,146792,257602, 452060,793310,1392162,2443074,4287296,7523680, 13203138,23169892,40660326,71353898,125217362, 219741152,385618840]