A158467 Denominators of EH(n), the expected value of the height of a probabilistic skip list with n elements and p=1/2.

1, 1, 3, 7, 105, 651, 1953, 35433, 3011805, 513010785, 376207909, 70008871793, 40955189998905, 25804920098540835, 158515937748179415, 33510269239965128331, 43060695973355189905335, 332000498936684593887186105, 2703432634198717407367086855

Offset

0,3

Links

Alois P. Heinz, Table of n, a(n) for n = 0..100

Maple

seq(denom(EH(n)), n=0..20);

Crossrefs

See A158466 for more information on EH(n).

Sequence in context: A373806 A243734 A372483 * A260824 A028414 A014014

Adjacent sequences: A158464 A158465 A158466 * A158468 A158469 A158470

Keyword

frac,nonn

Author

Alois P. Heinz, Mar 19 2009

Status

approved