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    The Calendar hole will go live in approximately . Why not try and solve it ahead of time?

    theunofficialcoder

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    12 Days of Christmas
    14th 365th29th 38th68th 1,027th 12th11th
    99 Bottles of Beer
    12th 15th 477th28th 21st 41st74th 1,065th 9th11th
    Abundant Numbers
    29th 21st 338th55th 40th 1,112th 18th 16th18th12th
    Abundant Numbers (Long)
    10th
    Arithmetic Numbers
    7th
    Ascending Primes
    14th16th 6th 13th7th10th 11th 6th 13th 7th9th 6th9th
    Catalan Numbers
    9th
    Catalan’s Constant
    7th 3rd 6th 6th 4th
    Christmas Trees
    286th28th 41st60th 805th 12th8th
    Collatz
    11th
    Cubes
    6th 9th 103rd17th 15th 6th7th
    Diamonds
    45th 163rd27th 22nd39th 569th 90th 10th 10th9th
    Divisors
    53rd 68th 20th13th
    Emirp Numbers
    174th24th 31st 632nd 8th6th
    Evil Numbers
    342nd44th 1,189th 17th11th
    Fibonacci
    95th 72nd 2,038th 67th44th
    Fizz Buzz
    85th88th 527th 63rd 1,453rd125th 9th234th278th 209th 43rd 352nd 148th 64th46th
    Happy Numbers
    64th169th28th 649th 12th6th
    Inventory Sequence
    12th
    Kolakoski Constant
    6th 4th 61st15th 7th14th17th 144th 8th4th
    Kolakoski Sequence
    10th 10th 118th21st 28th 312th 14th9th
    Leap Years
    49th 59th 24th16th
    Leyland Numbers
    15th 119th24th 18th 368th 9th7th
    ln 2
    10th 4th
    Look and Say
    15th 9th 146th20th 42nd 395th 10th9th
    Lucky Numbers
    7th
    Niven Numbers
    52nd 49th 875th 25th15th
    Number Spiral
    5th 6th
    Odious Numbers
    43rd 887th 18th10th
    Odious Numbers (Long)
    9th
    Pascal’s Triangle
    34th 681st 12th 15th9th
    Pernicious Numbers
    37th 47th 575th 22nd10th
    Pernicious Numbers (Long)
    6th11th
    Prime Numbers
    124th 383rd58th53rd 75th 1,005th 22nd11th
    Quine
    136th 22nd 106th 407th79th 1st 643rd 8th
    Recamán
    10th 22nd 16th 22nd27th 423rd 6th 13th9th
    Rijndael S-box
    10th 9th13th 8th 5th6th7th
    ROT13
    145th
    Rule 110
    8th 19th 15th 288th 8th8th
    Sierpiński Triangle
    11th 21st 120th22nd 29th28th 331st 12th 11th7th
    Smith Numbers
    9th 8th
    Tongue-twisters
    164th19th 17th28th 285th 14th 11th7th
    Vampire Numbers
    63rd13th 233rd 7th5th
    Van Eck Sequence
    11th 20th 28th 327th 10th9th
    γ
    19th 6th 15th 21st 4th 7th 14th 5th5th7th 5th8th
    λ
    48th 9th 100th20th 12th 152nd 10th6th
    π
    5th 214th91st 47th66th 497th 14th 9th6th
    τ
    34th 5th 113th77th 41st 278th 9th6th
    φ
    9th 37th 13th5th 86th73rd 31st7th 39th22nd42nd 353rd 26th48th18th9th10th 6th12th6th
    √2
    5th 107th61st 7th 515th 20th 6th14th6th
    𝑒
    50th 113th74th 11th 41st 401st37th32nd66th 12th 11th7th