%I A087307
%S A087307 1,3,5,155,158,161,111,115,119,123,3875983,3875988,3875993,3875998,
%T A087307 3876003,1333,1339,1345,1351,1357,1363
%N A087307 Triangle read by rows: n-th row is the first arithmetic progression with 
               common difference n of n numbers with the same prime signature.
%e A087307 Triangle begins:
%e A087307 1,
%e A087307 3,5,
%e A087307 155,158,161,
%e A087307 111,115,119,123,
%e A087307 3875983,3875988,3875993,3875998,3876003
%e A087307 ...
%Y A087307 Cf. A087306.
%Y A087307 Sequence in context: A088269 A164371 A108013 this_sequence A038535 A090953 
               A092947
%Y A087307 Adjacent sequences: A087304 A087305 A087306 this_sequence A087308 A087309 
               A087310
%K A087307 nonn,tabl
%O A087307 1,2
%A A087307 Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Sep 02 2003
%E A087307 Edited and extended by David Wasserman (dwasserm(AT) earthlink.net), 
               Jan 08 2006