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Search: id:A104126
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| 8, 81, 15625, 5764801, 3138428376721, 3937376385699289, 14063084452067724991009, 37589973457545958193355601, 480250763996501976790165756943041
(list; graph; listen)
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OFFSET
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2,1
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COMMENT
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Sum of reciprocals rapidly converges to 0.1374098524791901212366977116..
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PROGRAM
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(PARI) ptopp1(n) = { local(x, y, z, sr=0); forprime(x=1, n, y=x^(x+1); z=(x+1)^x; sr+=1./y; print1(y", "); ); print(); print(sr) }
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CROSSREFS
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Sequence in context: A145921 A100399 A022504 this_sequence A100879 A080811 A073699
Adjacent sequences: A104123 A104124 A104125 this_sequence A104127 A104128 A104129
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KEYWORD
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easy,nonn
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AUTHOR
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Cino Hilliard (hillcino368(AT)gmail.com), Mar 06 2005
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