Giuga Sequence
A finite, increasing sequence of Integers 
such that
A sequence is a Giuga sequence Iff it satisfies
for
, ..., 
. There are no Giuga sequences of length 2, one of length 3 (
), two of length 4 (
and 
), 3 of length 5 (
, 
, and 
), 17 of length 6, 27 of length 7, and hundreds of length 8. There are infinitely many Giuga sequences. Itis possible to generate longer Giuga sequences from shorter ones satisfying certain properties.See also Carmichael Sequence
References
Borwein, D.; Borwein, J. M.; Borwein, P. B.; and Girgensohn, R. ``Giuga's Conjecture on Primality.'' Amer. Math. Monthly 103, 40-50, 1996.
- Gyroelongated Pentagonal Rotunda
- Gyroelongated Pyramid
- Gyroelongated Rotunda
- Gyroelongated Square Bicupola
- Gyroelongated Square Cupola
- Gyroelongated Square Dipyramid
- Gyroelongated Square Pyramid
- Gyroelongated Triangular Bicupola
- Gyroelongated Triangular Cupola
- Gårding's Inequality
- Göbel's Sequence
- Gödel Number
- Gödel's Completeness Theorem
- Gödel's Incompleteness Theorem
- Haar Function
- Haar Integral
- Haar Measure
- Haar Transform
- Haberdasher's Problem
- Hadamard Design
- Hadamard Matrix
- Hadamard's Inequality
- Hadamard's Theorem
- Hadamard Transform
- Hadamard-Vallée Poussin Constants