# Greetings from The On-Line Encyclopedia of Integer Sequences! http://oeis.org/ Search: id:a082893 Showing 1-1 of 1 %I A082893 #7 Aug 15 2017 20:38:57 %S A082893 2,4,6,8,10,12,14,16,27,30,33,36,39,42,45,48,51,54,76,80,63,88,92,96, %T A082893 100,104,108,112,116,120,124,128,132,136,140,144,148,152,156,160,164, %U A082893 168,172,176,180,184,188,240,245,250,255,260,265,270,275,280,285,290 %N A082893 a(n) is the closest number to n-th prime which is divisible by n. %F A082893 a(n)=n*floor[(floor(n/2)+p(n))/n], where p(n) is the n-th prime. %e A082893 24th prime, 89 is between 72 and 96, closer to 96, so a(24)=96; %e A082893 25th prime, 97 is between 75 and 100, closer to 100, so a(25)=100. %t A082893 Table[n*Floor[(Floor[n/2]+Prime[n])/n], {n, 1, 100}] %Y A082893 Cf. A082894-A082900. %K A082893 nonn %O A082893 1,1 %A A082893 _Labos Elemer_, Apr 22 2003 # Content is available under The OEIS End-User License Agreement: http://oeis.org/LICENSE