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Number Theory
Combinatorial Number Theory
Title
Author(s)
Imp.¹
Rec.²
Subtopic
Posted by
The 3n+1 conjecture
Collatz
✭✭✭
0
dododododo
Divisibility of central binomial coefficients
Graham
✭✭
1
maxal
Frobenius number of four or more integers
✭✭
1
maxal
Olson's Conjecture
Olson
✭✭
0
mdevos
Few subsequence sums in Z_n x Z_n
Bollobas
;
Leader
✭✭
0
mdevos
Gao's theorem for nonabelian groups
DeVos
✭✭
0
mdevos
Sets with distinct subset sums
Erdos
✭✭✭
0
mdevos
Davenport's constant
✭✭✭
0
mdevos
Snevily's conjecture
Snevily
✭✭✭
1
mdevos
Odd incongruent covering systems
Erdos
;
Selfridge
✭✭✭
0
Robert Samal
Covering systems with big moduli
Erdos
;
Selfridge
✭✭
0
Robert Samal
Singmaster's conjecture
Singmaster
✭✭
1
Zach Teitler
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