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  2. List of integer sequences - Wikipedia

    en.wikipedia.org/wiki/List_of_integer_sequences

    1, 1, 2, 2, 4, 2, 6, 4, 6, 4, ... φ(n) is the number of positive integers not greater than n that are coprime with n. A000010: Lucas numbers L(n) 2, 1, 3, 4, 7, 11, 18, 29, 47, 76, ... L(n) = L(n − 1) + L(n − 2) for n ≥ 2, with L(0) = 2 and L(1) = 1. A000032: Prime numbers p n: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, ... The prime numbers p ...

  3. 1 + 2 + 3 + 4 + ⋯ - Wikipedia

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

    where f (2k−1) is the (2k − 1)th derivative of f and B 2k is the (2k)th Bernoulli number: B 2 = ⁠ 1 / 6 ⁠, B 4 = ...

  4. Tally marks - Wikipedia

    en.wikipedia.org/wiki/Tally_marks

    In the dot and line (or dot-dash) tally, dots represent counts from 1 to 4, lines 5 to 8, and diagonal lines 9 and 10. This method is commonly used in forestry and related fields. [ 6 ]

  5. List of mathematical series - Wikipedia

    en.wikipedia.org/wiki/List_of_mathematical_series

    This list of mathematical series contains formulae for finite and infinite sums. It can be used in conjunction with other tools for evaluating sums. Here, is taken to have the value

  6. Here's How to Thicken Mashed Potatoes Quickly - AOL

    www.aol.com/heres-thicken-mashed-potatoes...

    November 26, 2024 at 4:42 PM How to Thicken Mashed Potatoes Hector Manuel Sanchez Out of all the mashed potato mistakes you can make, adding too much liquid to your spuds is sure to ruin your day.

  7. Unticketed passenger caught on Delta Air Lines flight on ...

    www.aol.com/2nd-delta-air-lines-stowaway...

    A month after a woman was caught stowing away on a Delta Air Lines flight headed to France, ABC News has confirmed another unticketed individual was caught on a flight headed to Hawaii, this time ...

  8. What Are Your Chances Of Having A White Christmas? Here Are ...

    www.aol.com/chances-having-white-christmas-odds...

    Last year, just 17.6% of the Lower 48 experienced a white Christmas. This was the lowest percentage since records began in 2003.Outside of the higher elevations of the West, there was an area of ...

  9. Mathematics - Wikipedia

    en.wikipedia.org/wiki/Mathematics

    Since then, the interaction between mathematical innovations and scientific discoveries has led to a correlated increase in the development of both. [5] At the end of the 19th century, the foundational crisis of mathematics led to the systematization of the axiomatic method , [ 6 ] which heralded a dramatic increase in the number of ...