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The last results I got using my program CEB are: - For k=5, the best solution $(n_1,n_2,n_3,n_4,n_5)$ ≤ (200,200,200,200,200) is (2,3,4,63,152) and we can get all numbers up to $N_5$=450. - For k=6, the best solution $(n_1,n_2,n_3,n_4,n_5,n_6)$ ≤ (3,4,5,80,200,500) 10,20,30,40,50,80) is (2,3,5,34,45,56) 2,3,24,37,47,66) and we can get all numbers up to 2851$N_6$ = 3398.

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The last results I got using my program CEB are: - For k=5, the best solution (n1,n2,n3,n4,n5) $(n_1,n_2,n_3,n_4,n_5)$ ≤ (200,200,200,200,200) is (2,3,4,63,152) and we can get all numbers up to $N_5$=450. - For k=6, the best solution (n1,n2,n3,n4,n5,n6) $(n_1,n_2,n_3,n_4,n_5,n_6)$ ≤ (3,4,5,80,200,500) is (2,3,5,34,45,56) and we can get all numbers up to $N_6$=2851.2851.

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The last results I got using my program CEB are: - For k=5, the best solution (n1,n2,n3,n4,n5) ≤ (200,200,200,200,200) is (2,3,4,63,152) and we can get all numbers up to $N_5$=450. - For k=6, the best solution (n1,n2,n3,n4,n5,n6) ≤ (3,4,5,80,200,500) is (2,3,5,34,45,56) and we can get all numbers up to $N_6$=2851.

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