%I #3 Mar 30 2012 17:30:35
%S 12,12,20,42,66,78,102,114,138,174,186,222,246,258,282,318,354,366,
%T 402,426,438,474,498,534,582,606,618,642,654,678,762,786,822,834,894,
%U 906,942,978,1002,1038,1074,1086,1146,1158,1182,1194,1266,1338,1362,1374
%N Least abundant number divisible by the n-th prime number.
%F a(n) = 6*prime(n) for n>=4. - Jose Brox (tautocrona(AT)terra.es), Mar 24 2003
%e The first eight abundant numbers are 12, 18, 20, 24, 30, 36, 40 and 42. But only the last one is divisible by 7, the fourth prime number. Therefore a(4) = 42.
%t If[n==2||n==3, 4, 6]Prime[n]
%K easy,nonn
%O 1,1
%A _Robert G. Wilson v_, Sep 15 2001