12,2

a(4)=12 because Golomb's a(4)=3, thus 4*3=12

a(10)=50 because Golomb's a(10)=5, thus 10*5=50

Cf. A001462.

Sequence in context: A058219 A131863 A074870 this_sequence A122781 A153355 A024904

Adjacent sequences: A104233 A104234 A104235 this_sequence A104237 A104238 A104239

base,easy,nonn

Alexandre Wajnberg (alexandre.wajnberg(AT)ulb.ac.be), Apr 02 2005