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Search: id:A112566
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| 1, 3, 9, 31, 109, 421, 1585, 5454, 20681, 80983, 311221, 1168531, 4505761, 17907735, 69240865
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OFFSET
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1,2
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COMMENT
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A112565 is the main diagonal of square table A112564 of generalized Flavius Josephus sieves.
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PROGRAM
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(PARI) {a(n)=local(A=n, B=0, k=0); if(n<1, 0, until(A==B, k=k+1; if(k%n==0, k=k+1); B=A; A=floor(A*(k+1)/k)); A/n)}
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CROSSREFS
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Cf. A112564, A112565, A112567.
Adjacent sequences: A112563 A112564 A112565 this_sequence A112567 A112568 A112569
Sequence in context: A130620 A127927 A123222 this_sequence A128082 A047012 A120305
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KEYWORD
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more,nonn
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AUTHOR
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Paul D. Hanna (pauldhanna(AT)juno.com), Oct 14 2005
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