The integer sequence "g"(0) = 1, "g"(1) = 1, "g"(2) = 2, "g"(3) = 3, "g"(4) = 4, "g"(5) = 6, "g"(6) = 6, "g"(7) = 12, "g"(8) = 15, ... is named after Edmund Landau, who proved in 1902 that:formula_1(where ln denotes the natural logarithm).
Целочисленная последовательность "g"(0) = 1, "g"(1) = 1, "g"(2) = 2, "g"(3) = 3, "g"(4) = 4, "g"(5) = 6, "g"(6) = 6, "g"(7) = 12, "g"(8) = 15, … — , названа в честь Эдмунда Ландау, доказавшего в 1902, что: formula_7(где ln обозначает натуральный логарифм).