MathDB
VN TST 2010 Pro 6

Source:

October 24, 2010
algebrapolynomialmodular arithmeticnumber theory unsolvednumber theory

Problem Statement

Let SnS_n be sum of squares of the coefficient of the polynomial (1+x)n(1+x)^n. Prove that S2n+1S_{2n} +1 is not divisible by 3.3.
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