Sharadchandra Shankar Shrikhande, Indian mathematician (died 2020)

Sharadchandra Shankar Shrikhande was an Indian mathematician with notable achievements in combinatorial mathematics. He was notable for his breakthrough work along with R. C. Bose and E. T. Parker in their disproof of the famous conjecture made by Leonhard Euler dated 1782 that there do not exist two mutually orthogonal latin squares of order 4n + 2 for any n. Shrikhande's specialties were combinatorics and statistical designs. The Shrikhande graph is used in statistical design.

October 19 is the 292nd day of the year in the Gregorian calendar; 73 days remain until the end of the year.