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Numbers ending in 3 which are not prime.
1

%I #8 Dec 16 2021 22:15:44

%S 33,63,93,123,133,143,153,183,203,213,243,253,273,303,323,333,343,363,

%T 393,403,413,423,453,473,483,493,513,533,543,553,573,583,603,623,633,

%U 663,693,703,713,723,753,763,783,793,803,813,833,843,873,893,903,913

%N Numbers ending in 3 which are not prime.

%Y Cf. A030431.

%K easy,nonn,base

%O 1,1

%A _Enoch Haga_, Feb 29 2000

%E Terms corrected by _Sean A. Irvine_, Dec 16 2021