Number of books required for n book-lengths of overhang in the harmonic book stacking problem. Sum_{i=1..a(n)} 1/i >= 2n and Sum_{i=1..a(n)-1} 1/i < 2n.

A014537

Number of books required for n book-lengths of overhang in the harmonic book stacking problem. Sum_{i=1..a(n)} 1/i >= 2n and Sum_{i=1..a(n)-1} 1/i < 2n.

Terms

    a(0) =4a(1) =31a(2) =227a(3) =1674a(4) =12367a(5) =91380a(6) =675214a(7) =4989191a(8) =36865412a(9) =272400600a(10) =2012783315a(11) =14872568831a(12) =109894245429a(13) =812014744422

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