Search: id:A049928 Results 1-1 of 1 results found. %I A049928 %S A049928 1,3,4,7,11,25,47,87,138,322,641,1275,2514,4937,9371,16869,26881,63132, %T A049928 126261,252515,504994,1009897,2019291,4036709,8066561,16115612, %U A049928 32131844,63884955,126255613,246463956,468862629,843601489,1344595962 %N A049928 a(n)=a(1)+a(2)+...+a(n-1)-a(m), where m=2n-3-2^(p+1) and 2^p