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%I #11 Oct 18 2019 17:00:39
%S 49,50,52,56,84,88,169,176,180,198,220,302,322,336,339,363,364,372,
%T 387,402,406,407,424,429,434,442,492,494,508,552,553,562,589,612,628,
%U 633,650,708,724,744,760,788,816,819,843,848,860,861,862,870,872,896,918
%N Composites c that reach a prime after 5 iterations of c-> c+sum of prime factors of c.
%e 49 is a term:
%e Iteration 1: 49 = 7*7 so 49 + (7+7) = 49 + 14 = 63 and composite.
%e Iteration 2: 63 = 3*3*7 so 63 + (3+3+7) = 63 + 13 = 76 and composite.
%e Iteration 3: 76 = 2*2*19 so 76 + (2+2+19) = 76 + 23 = 99 and composite.
%e Iteration 4: 99 = 3*3*11 so 99 + (3+3+11) = 99 + 17 = 116 and composite.
%e Iteration 5: 116 = 2*2*29 so 116 + (2+2+29) = 116 + 33 = 149 and prime.
%Y Cf. A050703, A050704, A050705, A050706, A050707, A050708, A050710.
%K nonn
%O 1,1
%A _Patrick De Geest_, Aug 15 1999
%E Name edited by _Michel Marcus_, Oct 18 2019
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