Gazeta matematică 2021
Gazeta Matematică 6-7-8/2021
Gazeta Matematică 10/2021
28163 (Dana Heuberger)
Aflați șirul de numere naturale nenule Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle (a_n)_{n\geq1}} pentru care
pentru orice Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle n \geq 1}
.