OFFSET
2,2
REFERENCES
U.-U. Haus, M. Koeppe and R. Weismantel, A Primal All-Integer Algorithm Based on Irreducible Solutions, Math. Programming, Series B, 96 (2003), no. 2, 205-246
B. Sturmfels and R. R. Thomas, Variation of Cost Functions in Integer Programming, Mathematical Programming 77 (1997), 357-387
LINKS
EXAMPLE
a(3)=5 because we can write 2=1+1, 3=1+2, 3=1+1+1, 3+1=2+2, 3+3=2+2+2.
CROSSREFS
KEYWORD
nonn
AUTHOR
Matthias Koeppe (mkoeppe(AT)mail.math.uni-magdeburg.de), Dec 03 2003
STATUS
approved