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%I #7 Oct 20 2019 17:25:24
%S 4,6,8910,12,141516,18,202122,2425262728,30,3233343536,383940,42,
%T 444546,4849505152,5455565758,60,6263646566,686970,72,7475767778,
%U 808182,8485868788,90919293949596,9899100,102,104105106,108,110111112
%N Concatenation of composite numbers between successive primes.
%t FromDigits[Flatten[IntegerDigits/@(Range[#[[1]]+1,#[[2]]-1])]]&/@Partition[ Prime[Range[2,30]],2,1] (* _Harvey P. Dale_, Mar 04 2014 *)
%Y Cf. A046933, A054265, A054266, A054267, A054268.
%K nonn,base,easy
%O 0,1
%A _Patrick De Geest_, Apr 15 2000
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