220476

Appears in sequences

• a(0) = 1; a(n) = 2 * Sum_{k=1..n} binomial(n,k) * a(k-1).at n=8A343523
• Viggo Brun's ternary continued fraction algorithm applied to { log 2, log 3/2, log 5/4 } produces a list of triples (p,q,r); sequence gives r values.at n=36A359744