Annual Appeal: Please make a donation (tax deductible in USA) to keep the OEIS running. Over 5000 articles have referenced us, often saying "we discovered this result with the help of the OEIS".
12,2
Table of n, a(n) for n=12..45.
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: A251630 A256241 A247632 * A265225 A122781 A153355
Adjacent sequences: A104233 A104234 A104235 * A104237 A104238 A104239
base,easy,nonn
Alexandre Wajnberg, Apr 02 2005
approved