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Prime numbers, diophantine equations, diophantine approximations, analytic or algebraic number theory, arithmetic geometry, Galois theory, transcendental number theory, continued fractions
3
votes
The largest digital sum of the square of an n-digit number
After 10 +
days calculating, I got the following sequence : {13, 31, 46, 63, 81,
97, 112, 130, 148, 162, 180, 193, 211, 229, 244, 262, 277, 297,
310, 331, 343, 360, 378, 396, 406, 423, 436, 454, 469, …