Search: id:A049952 Results 1-1 of 1 results found. %I A049952 %S A049952 1,2,2,6,13,25,51,113,264,478,957,1925,3888,7989,16671,36273,85329, %T A049952 153988,307977,615965,1231968,2464149,4928991,9860913,19734609, %U A049952 39537876,79298400,159520791,322738605,660282828,1380129447,3003699099 %N A049952 a(n)=a(1)+a(2)+...+a(n-1)+a(m), where m=2n-3-2^(p+1) and 2^p