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%I #27 Jan 01 2023 17:09:58
%S 253,2773,130285,651421,219528541,257067920341,4370154645781,
%T 292800361267261,11023640801351071741,13475008472558425746927448861,
%U 5107028211099643358085503117941,1313771981231475489737485570488833367541
%N a(n) = A152466(n) + 1.
%C Conjecture: this sequence has no prime terms.
%C A152466(n+1) = A152466(n) * (smallest prime factor of a(n)).
%C This conjecture has now been disproved: a(39) is a prime number. - _Andrea Concaro_, Dec 31 2022
%H Andrea Concaro, <a href="/A242463/b242463.txt">Table of n, a(n) for n = 1..39</a>
%e A152466(1) = 252, a(1) = 252 + 1 = 253.
%Y Cf. A152466.
%K nonn
%O 1,1
%A _J. Lowell_, May 15 2014