0,5

Starting with a(14)=783, a(n) = 2*a(n-1) - (1 or 0).

A109070(10)=50 because A108225(10)=16217557574922386301420536972254869595782763547562 has 50 digits.

Cf. A108225.

Sequence in context: A095325 A153970 A067953 this_sequence A049868 A120363 A118988

Adjacent sequences: A109067 A109068 A109069 this_sequence A109071 A109072 A109073

base,nonn

Zak Seidov (zakseidov(AT)yahoo.com), Jun 18 2005