Derek Orr
147.7K posts
Derek Orr
@Derektionary
PhD Math biology • MS Number theory • BS Math/Phys • Tutor • Sudoku • OEIS editor • Author • 90% RTs. Erdős number 4 #H2P #BLM
Pittsburgh, PA Katılım Nisan 2013
193 Takip Edilen1.6K Takipçiler
Henüz tweet yok