OFFSET
1,2
LINKS
Fausto A. C. Cariboni, Table of n, a(n) for n = 1..46
EXAMPLE
The a(1) = 1 through a(5) = 13 subsets:
{1} {2} {3} {1,4} {3,5}
{1,2} {1,3} {2,4} {4,5}
{2,3} {3,4} {1,2,5}
{1,2,3} {1,2,4} {1,3,5}
{1,3,4} {1,4,5}
{2,3,4} {2,3,5}
{1,2,3,4} {2,4,5}
{3,4,5}
{1,2,3,5}
{1,2,4,5}
{1,3,4,5}
{2,3,4,5}
{1,2,3,4,5}
MATHEMATICA
Table[Length[Select[Subsets[Range[n]], MemberQ[#, n]&&Plus@@#>=Plus@@Complement[Range[n], #]&]], {n, 10}]
CROSSREFS
KEYWORD
nonn
AUTHOR
Gus Wiseman, Jun 11 2019
EXTENSIONS
a(21)-a(42) from Bert Dobbelaere, Jun 22 2019
STATUS
approved