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%I #5 Jan 25 2017 08:39:51
%S 3,3,4,5,6,6,7,7,7,10,9,9,9,10,10,10,12,12,13,13,13,14,14,14,14,16,17,
%T 16,15,17,17,16,18,19,19,19,18,20,20,21,21,21,21,22,22,22,22,22,23,23
%N Row lengths of the irregular triangle A279399.
%C a(n) is the number of primes of the smallest positive restricted residue system modulo A033949(n).
%Y Cf. A033949, A279399.
%K nonn
%O 1,1
%A _Wolfdieter Lang_, Jan 25 2017
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