1,2

Conjecture: all numbers of the form 3*2^n are in this sequence. - J. Lowell, Mar 12 2008 [This is false: 3*2^12 = 12288 is the smallest counterexample. - Klaus Brockhaus, Jul 24 2008]

Table of n, a(n) for n=1..52.

Sequence in context: A191283 A200678 A088881 * A175381 A213623 A074715

Adjacent sequences: A020694 A020695 A020696 * A020698 A020699 A020700

nonn

J. Lowell, May 11 2007, corrected Mar 20 2008

More terms from Klaus Brockhaus, Jul 24 2008

approved