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  2. Fibonacci sequence - Wikipedia

    en.wikipedia.org/wiki/Fibonacci_sequence

    Lucas numbers have L 1 = 1, L 2 = 3, and L n = L n−1 + L n−2. Primefree sequences use the Fibonacci recursion with other starting points to generate sequences in which all numbers are composite. Letting a number be a linear function (other than the sum) of the 2 preceding numbers. The Pell numbers have P n = 2P n−1 + P n−2.

  3. 1 + 2 + 3 + 4 + ⋯ - Wikipedia

    en.wikipedia.org/wiki/1_%2B_2_%2B_3_%2B_4_%2B_%E...

    The partial sums of the series 1 + 2 + 3 + 4 + 5 + 6 + ⋯ are 1, 3, 6, 10, 15, etc.The nth partial sum is given by a simple formula: = = (+). This equation was known ...

  4. Number Forms - Wikipedia

    en.wikipedia.org/wiki/Number_Forms

    Number Forms is a Unicode block containing Unicode compatibility characters that have specific meaning as numbers, but are constructed from other characters. They consist primarily of vulgar fractions and Roman numerals. In addition to the characters in the Number Forms block, three fractions (¼, ½, and ¾) were inherited from ISO-8859-1 ...

  5. Today's Wordle Answer, Hint for #1117 on Wednesday ... - AOL

    www.aol.com/todays-wordle-answer-hint-1117...

    Today's Wordle Answer for #1117 on Wednesday, July 10, 2024. Today's Wordle answer on Wednesday, July 10, 2024, is GAUNT. How'd you do?

  6. 1 − 2 + 3 − 4 + ⋯ - Wikipedia

    en.wikipedia.org/wiki/1_%E2%88%92_2_%2B_3_%E2%88...

    The idea becomes clearer by considering the general series 1 − 2x + 3x 2 − 4x 3 + 5x 4 − 6x 5 + &c. that arises while expanding the expression 1 ⁄ (1+x) 2, which this series is indeed equal to after we set x = 1.

  7. 1, 2, 3, 4 (Sumpin' New) - Wikipedia

    en.wikipedia.org/wiki/1,_2,_3,_4_(Sumpin'_New)

    Larry Flick from Billboard described the song as "a jumpy, funk-lined jeep anthem that allows Coolio plenty of room to work up a fun, lyrical sweat."He added, "The sample-happy groove provides a wigglin' good time, riding primarily on a prominent snippet of the early '80s 12-incher "Wikka Wrap" by the Evasions.

  8. Greek numerals - Wikipedia

    en.wikipedia.org/wiki/Greek_numerals

    The first line contains the number " ͵θϡϟϛ δʹ ϛʹ ", i.e. " 9,996 + 14 + 16 ". It features each of the special numeral symbols sampi (ϡ), koppa (ϟ), and stigma (ϛ) in their minuscule forms. Greek numerals are decimal, based on powers of 10. The units from 1 to 9 are assigned to the first nine letters of the old Ionic alphabet ...

  9. Unary numeral system - Wikipedia

    en.wikipedia.org/wiki/Unary_numeral_system

    For instance, the unary form of a number can be exponentially longer than its representation in other bases. [5] The use of tally marks in counting is an application of the unary numeral system. For example, using the tally mark | (𝍷), the number 3 is represented as |||. In East Asian cultures, the number 3 is represented as 三, a character ...