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%I #5 Jun 13 2016 07:15:33
%S 24,36,54,60,90,104,136,150,189,225,232,294,308,328,344,375,441,459,
%T 488,510,516,550,570,621,676,708,714,738,748,776,852,860,884,910,999,
%U 1014,1060,1096,1112,1161,1197,1206,1256,1274,1284,1290,1356,1432,1450,1482
%N 4-almost primes indexed by primes.
%C Primes indexed by 4-almost primes = A124282. prime(4almostprime(n)) - 4almostprime(prime(n)) = A124284. Primes indexed by 3-almost primes = A124268. 3-almost primes indexed by primes = A124269. prime(3almostprime(n)) - 3almostprime(prime(n)) = A124270. See also A106349 Primes indexed by semiprimes. See also A106350 Semiprimes indexed by primes. See also A122824 Prime(semiprime(n)) - semiprime(prime(n)). Commutator [A000040,A001358] at n.
%H Giovanni Resta, <a href="/A124283/b124283.txt">Table of n, a(n) for n = 1..10000</a>
%F a(n) = 4almostprime(prime(n)) = A014613(A000040(n)).
%e a(1) = 4almostprime(prime(1)) = 4almostprime(2) = 24.
%e a(2) = 4almostprime(prime(2)) = 4almostprime(3) = 36.
%e a(3) = 4almostprime(prime(3)) = 4almostprime(5) = 54.
%Y Cf. A000040, A014613, A114414, A122824, A124269, A124270, A124282, A124284.
%K easy,nonn
%O 1,1
%A _Jonathan Vos Post_, Oct 24 2006
%E a(17)-a(50) from _Giovanni Resta_, Jun 13 2016
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