OFFSET
1,2
EXAMPLE
a(3)=13 because 13 is the largest number k such that the equation 5*x_1 + 7*x_2 + 11*x_3 = k has no solution for any nonnegative x_i. (In other words, for every k > 13 there exist one or more solutions.)
MATHEMATICA
Table[FrobeniusNumber[{Prime[n], Prime[n + 1], Prime[n + 2}], {n, 1, 100}]
FrobeniusNumber/@Partition[Prime[Range[50]], 3, 1] (* Harvey P. Dale, Dec 01 2015 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Artur Jasinski, Apr 05 2008
STATUS
approved