When N = 9, there exists 8 solutions by maths method or search program. When N = 10, the first digit is in range (1 – 9). So 8 * 9 = 72. When N > 10, insert a digit in range (0 – 9) into the second digit of the solution with (N – 1) digits. So Ans = 72 * ...
When N = 9, there exists 8 solutions by maths method or search program. When N = 10, the first digit is in range (1 – 9). So 8 * 9 = 72. When N > 10, insert a digit in range (0 – 9) into the second digit of the solution with (N – 1) digits. So Ans = 72 * ...
Jouchi Nakajima and Yasuhiro Omori (2012), "Stochastic volatility model with leverage and asymmetrically heavy-tailed error using GH skew Student's t-distribution," Computational Statistics and Data Analysis, 56-11, 3690-3704, November 2012. Shinya Sugawara and Yasuhiro Omori (2012), "Duopoly in ...