السلام عليكم ورحمة الله وبركاته 2 ×3 - 1 = 5 5× 3 - 2 = 13 13 × 3 - 3 = 36 36 × 3 - 4 = 104 104 × 3 - 5 = 307 307 × 3 - 6 = 905 المتسلسلة الأولى 2 ، 5 ، 13 ، 36 ، 104 ، 307 ، 905 شكراً
Mathematics is the language of nature Mathematics is the language of the Universe Mathematics is a very beautiful language