Findings:

• Kappa Sigma
• sigma
• Σ
• Sigma Nu
• Sigma Draconis
• Sigma Phi Epsilon
• sigma notation
• Sigma Designs
• Plateau Sigma
• Sigma Mu Beta
• Korg Sigma
• Tau Beta Sigma
• Sigma Chi
• sigma function
• Sigma Kappa
• Phi Delta Sigma
• σ algebra
• Sigma (user)
• Sigma field
• Sigma Xi
• Sigma Alpha Epsilon
• sigma finite
• Six Sigma
• Sigma EM8500
• Sigma Alpha Mu
• Phi Kappa Sigma
• sigma factor
• Sigma Star Saga
• sigma sigma sigma
• sigma algebra
• Alpha Chi Sigma
• sigma curve
• sigma male
• 7th Sigma
• C. E. Sum (user)
• Tai Nyet Sum (user)
• sum total
• Dim Sum
• sum
• Cogito ergo sum
• cogito cogito ergo cogito sum
• The sum total of human knowledge
• \sum
• sum of products
• Product of Sums
• zero sum world
• The Sum of All Fears
• Riemann Sum
• The Sum of All Forces
• Non sum qualis eram bonae sub regno Cynarae
• the sum of all positive even numbers is -2
• The sum of an infinite series of positive numbers is negative
• I am not playing a zero sum game
• Dubito ergo sum
• ad maiora natus sum
• zero sum game
• lump sum
• Darboux sum
• upper Darboux sum
• sum under quadrature
• Cross Sums
• Minkowski sum
• Sum 41
• Zero Sum
• sum of the reciprocals of the primes
• proof that the sum of the reciprocals of the primes diverges
• The sum total of human bullshit
• subset sum
• direct sum
• cognito ergo sum
• sum type
• telescoping sum
• Any function can be represented as the sum of an even function and an odd one
• choy sum
• Mr Product's and Mrs Sum's Quiz
• exponential sum
• You Win Sum You Lose Sum
• Triangle sum rule
• The whole is greater than the sum of its parts
• You are nothing but the sum of your friends
• Erdos' proof that the sum of the reciprocals of the primes diverges
• The Dim Sum of All Things
• get sum (user)
• connected sum
• general sum game
• sum (user)
• non sum qualis eram (user)
• saved the sum of things for pay
• Non fui, fui, non sum, non curo
• Sum more (user)
• non sum qualis eram
• The whole is less than the sum of it's parts
• The sum of your life
• Less Than Zero Sum Game
• The total sum of all things would be zero if it was not for love
• we are more than our scars. we are more than the sum of our parts.

If you Log in you could create a "sigma sum" node. If you don't already have an account, you can register here.