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Search: id:A112568
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| A112568 |
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Secondary diagonal of square table A112564 of generalized Flavius Josephus sieves. |
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+0
7
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| 1, 3, 13, 61, 241, 1051, 5041, 20161, 91081, 392041, 1681681, 6530173, 27168961, 115590931
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OFFSET
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1,2
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PROGRAM
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(PARI) {a(n)=local(A=n, B=0, k=0); if(n==0, 1, until(A==B, k=k+1; if(k%(n+1)==0, k=k+1); B=A; A=floor(A*(k+1)/k)); 1+A)}
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CROSSREFS
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Cf. A112564, A112565.
Sequence in context: A020007 A112731 A106884 this_sequence A104089 A108143 A101368
Adjacent sequences: A112565 A112566 A112567 this_sequence A112569 A112570 A112571
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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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