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A111729
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Historical progression of years from the song "In The Year 2525" by Denny Zager and Rick Evans.
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0
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OFFSET
| 1,1
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COMMENTS
| Sequence is potentially cyclic. #1 Billboard hit 1969. Last "2525" added because first verse repeats at the end. Note that it also begins to transition into the second verse again after this in some editions, causing "3535" to be faintly audible. The lyrics of the song also imply the sequence is theoretically cyclic and recurring.
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LINKS
| D. Zager and R. Evans, Zager and Evans
D. Zager and R. Evans, In The Year 2525 (Exordium and Terminus), 1964
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FORMULA
| for n<6 or n=8, a(n)= 101*(10n+15). For n=6 or 7, a(n) is irregular, and is equal 101*(10n+15) with the exception that the final two digits are fixed at 10. Assuming the cyclic sequence, for n>8, a(n) = f(n mod 8), with the exception that when n mod 8 = 0, take a(n) = n(8) = 9595.
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EXAMPLE
| The opening lyric is "In the year 2525/if man is still alive/if woman can survive/they may find..." hence n(1)=2525.
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CROSSREFS
| Sequence in context: A096026 A031984 A045213 * A203440 A172142 A206596
Adjacent sequences: A111726 A111727 A111728 * A111730 A111731 A111732
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KEYWORD
| nonn,less
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AUTHOR
| Jeff Cohen (jcohen(AT)cpan.org), Nov 18 2005
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EXTENSIONS
| Added last 2525 to represent coda of first verse at end, also added formula - Gregory Koch, Mar 05 2011.
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